John Cornelisse
@johncornelisse.bsky.social
Adult Chess Improver on the road to FM
Chesspunk
Runner (2x marathonner)
FC St. Pauli fan
Telling stories with data
Utrecht
(profile pic by Harry Gielen)
Chesspunk
Runner (2x marathonner)
FC St. Pauli fan
Telling stories with data
Utrecht
(profile pic by Harry Gielen)
Reposted by John Cornelisse
Haha, de Uitsluitpiet wil niks. Fatsoenpiet vindt het niet zijn probleem en nu moet Treinpiet het oplossen
November 11, 2025 at 7:23 AM
Haha, de Uitsluitpiet wil niks. Fatsoenpiet vindt het niet zijn probleem en nu moet Treinpiet het oplossen
Whatcha got?
You got to do something!
You got to do something!
October 31, 2025 at 11:10 AM
Whatcha got?
You got to do something!
You got to do something!
Reposted by John Cornelisse
From yesterday's game at my club. Black just played 26...d3 and thought he was winning. I believed him, played 27.Qd1 and lost a few moves later.
What did we both miss?
#chesspunks
What did we both miss?
#chesspunks
October 31, 2025 at 10:54 AM
From yesterday's game at my club. Black just played 26...d3 and thought he was winning. I believed him, played 27.Qd1 and lost a few moves later.
What did we both miss?
#chesspunks
What did we both miss?
#chesspunks
Reposted by John Cornelisse
De Verkiezing-A-Long 2025! Met nummers van ‘Euro-opa’ tot ‘We’ll build 10 cities’! Een muzikaal verzamelalbum voor de zwevende én swingende kiezer! #LUBACH
Verkiezing-A-Long 2025 | LUBACH
YouTube video by LUBACH
youtu.be
October 23, 2025 at 8:52 PM
De Verkiezing-A-Long 2025! Met nummers van ‘Euro-opa’ tot ‘We’ll build 10 cities’! Een muzikaal verzamelalbum voor de zwevende én swingende kiezer! #LUBACH
From yesterday's game at my club.
What is the best move for White according to Stockfish here?
I did not play it and it was not even on my list of candidate moves.
I still won my game by the way, but only thanks to a blunder from Black in an equal rook endgame.
#chesspunks
What is the best move for White according to Stockfish here?
I did not play it and it was not even on my list of candidate moves.
I still won my game by the way, but only thanks to a blunder from Black in an equal rook endgame.
#chesspunks
October 17, 2025 at 12:43 PM
From yesterday's game at my club.
What is the best move for White according to Stockfish here?
I did not play it and it was not even on my list of candidate moves.
I still won my game by the way, but only thanks to a blunder from Black in an equal rook endgame.
#chesspunks
What is the best move for White according to Stockfish here?
I did not play it and it was not even on my list of candidate moves.
I still won my game by the way, but only thanks to a blunder from Black in an equal rook endgame.
#chesspunks
First round Dutch Senior Championship.
I wanted to play 15...Ne4 but after 16.Bxe4 dxe4 17.Ng5 Black threatens the pawn and a fork on e6.
So, in the end I settled for 15...Ng6 which is still a bit better for me.
But what did I miss? #ForcingChessMoves
#chesspunks
I wanted to play 15...Ne4 but after 16.Bxe4 dxe4 17.Ng5 Black threatens the pawn and a fork on e6.
So, in the end I settled for 15...Ng6 which is still a bit better for me.
But what did I miss? #ForcingChessMoves
#chesspunks
July 12, 2025 at 3:31 PM
First round Dutch Senior Championship.
I wanted to play 15...Ne4 but after 16.Bxe4 dxe4 17.Ng5 Black threatens the pawn and a fork on e6.
So, in the end I settled for 15...Ng6 which is still a bit better for me.
But what did I miss? #ForcingChessMoves
#chesspunks
I wanted to play 15...Ne4 but after 16.Bxe4 dxe4 17.Ng5 Black threatens the pawn and a fork on e6.
So, in the end I settled for 15...Ng6 which is still a bit better for me.
But what did I miss? #ForcingChessMoves
#chesspunks
A position from the game Zubarev-Lechtynsky, Pardubice 2006.
What is the best move for White?
#chesspunks
What is the best move for White?
#chesspunks
July 4, 2025 at 4:17 PM
A position from the game Zubarev-Lechtynsky, Pardubice 2006.
What is the best move for White?
#chesspunks
What is the best move for White?
#chesspunks
Which move would you choose? Qg5 or Qg4?
From the RLP open last weekend. A well organized tournament in Germany with friendly people and big schnitzels. And I even gained two ratingpoints.
#chesspunks
From the RLP open last weekend. A well organized tournament in Germany with friendly people and big schnitzels. And I even gained two ratingpoints.
#chesspunks
June 23, 2025 at 4:44 PM
Which move would you choose? Qg5 or Qg4?
From the RLP open last weekend. A well organized tournament in Germany with friendly people and big schnitzels. And I even gained two ratingpoints.
#chesspunks
From the RLP open last weekend. A well organized tournament in Germany with friendly people and big schnitzels. And I even gained two ratingpoints.
#chesspunks
Guess the move. From my game of round 5 of the Open Utrecht Championship yesterday. What do you play here? 20.e5 or 20.d5? And why?
#chesspunks
#chesspunks
June 2, 2025 at 6:19 PM
Guess the move. From my game of round 5 of the Open Utrecht Championship yesterday. What do you play here? 20.e5 or 20.d5? And why?
#chesspunks
#chesspunks
Sore loser.
Magnus Carlsen punches the table in frustration after losing to world champion Gukesh Dommaraju for the first time in a classical game at #NorwayChess today.
June 2, 2025 at 5:30 AM
Sore loser.
Some nice positions from my game yesterday in the final round of the Dutch league.
I sacced an exchange, but I have some nice laserbeams on b2 and g2. White to move, how would you evaluate 20.Nxf7?
#chesspunks
I sacced an exchange, but I have some nice laserbeams on b2 and g2. White to move, how would you evaluate 20.Nxf7?
#chesspunks
May 11, 2025 at 6:20 PM
Some nice positions from my game yesterday in the final round of the Dutch league.
I sacced an exchange, but I have some nice laserbeams on b2 and g2. White to move, how would you evaluate 20.Nxf7?
#chesspunks
I sacced an exchange, but I have some nice laserbeams on b2 and g2. White to move, how would you evaluate 20.Nxf7?
#chesspunks
A nice position from a blitz game I just played. White to move.
1) I just played 21...Qc8. What is the threat?
2) White played 22.Kf1, was this a good move?
#chesspunks
1) I just played 21...Qc8. What is the threat?
2) White played 22.Kf1, was this a good move?
#chesspunks
May 7, 2025 at 10:50 AM
A nice position from a blitz game I just played. White to move.
1) I just played 21...Qc8. What is the threat?
2) White played 22.Kf1, was this a good move?
#chesspunks
1) I just played 21...Qc8. What is the threat?
2) White played 22.Kf1, was this a good move?
#chesspunks
Reposted by John Cornelisse
Second round of the IX Open Internacional Semana Santa San Vicente del Raspeig. An interesting fight against a 2344-FM.
After some inaccuracies in the opening, I had to use a lot of time to keep the position balanced. Later I got some chances, see diagram in next post.
#chesspunks
After some inaccuracies in the opening, I had to use a lot of time to keep the position balanced. Later I got some chances, see diagram in next post.
#chesspunks
April 17, 2025 at 9:08 PM
Second round of the IX Open Internacional Semana Santa San Vicente del Raspeig. An interesting fight against a 2344-FM.
After some inaccuracies in the opening, I had to use a lot of time to keep the position balanced. Later I got some chances, see diagram in next post.
#chesspunks
After some inaccuracies in the opening, I had to use a lot of time to keep the position balanced. Later I got some chances, see diagram in next post.
#chesspunks
First round of the IX Open Internacional Semana Santa San Vicente del Raspeig. Opponent did not show.
It is a well organized tournament, but like last year around 20-30 no shows. People come to the tournament to play some chess and can go home after a 30 minute wait. Makes me feel sad.
#chesspunks
It is a well organized tournament, but like last year around 20-30 no shows. People come to the tournament to play some chess and can go home after a 30 minute wait. Makes me feel sad.
#chesspunks
April 16, 2025 at 4:22 PM
First round of the IX Open Internacional Semana Santa San Vicente del Raspeig. Opponent did not show.
It is a well organized tournament, but like last year around 20-30 no shows. People come to the tournament to play some chess and can go home after a 30 minute wait. Makes me feel sad.
#chesspunks
It is a well organized tournament, but like last year around 20-30 no shows. People come to the tournament to play some chess and can go home after a 30 minute wait. Makes me feel sad.
#chesspunks
April 15, 2025 at 10:53 AM
Yesterday was round 8 of the Dutch league. My team won 6-2 and remains in the lead. One more round to go with one matchpoint ahead of two teams. It will be a tense final round.
Here are some nice positions from my game.
#chesspunks
Here are some nice positions from my game.
#chesspunks
April 6, 2025 at 7:18 AM
Yesterday was round 8 of the Dutch league. My team won 6-2 and remains in the lead. One more round to go with one matchpoint ahead of two teams. It will be a tense final round.
Here are some nice positions from my game.
#chesspunks
Here are some nice positions from my game.
#chesspunks
An interesting position from my yesterday's game. With White I came out of the opening with a nice advantage. Here I had to make a choice between first exchanging on b4 or play Nxc6 immediately. What would you do?
#chesspunks
#chesspunks
March 28, 2025 at 7:56 AM
An interesting position from my yesterday's game. With White I came out of the opening with a nice advantage. Here I had to make a choice between first exchanging on b4 or play Nxc6 immediately. What would you do?
#chesspunks
#chesspunks
Solution:
Our silicon friend says 30...Ng4!! is the best move in this position. After the forced 31.hxg4, Black continues with 31...Qa4+ (diagram).
Now if 32.b3 Qa2+ picks up the loose rook on g2.
If 32.Kd2 Bg5+ picks up the other rook. And also after 32.Kb1 Qa1 33.Kc2 Rc8+ Black wins material.
Our silicon friend says 30...Ng4!! is the best move in this position. After the forced 31.hxg4, Black continues with 31...Qa4+ (diagram).
Now if 32.b3 Qa2+ picks up the loose rook on g2.
If 32.Kd2 Bg5+ picks up the other rook. And also after 32.Kb1 Qa1 33.Kc2 Rc8+ Black wins material.
March 26, 2025 at 4:40 PM
Solution:
Our silicon friend says 30...Ng4!! is the best move in this position. After the forced 31.hxg4, Black continues with 31...Qa4+ (diagram).
Now if 32.b3 Qa2+ picks up the loose rook on g2.
If 32.Kd2 Bg5+ picks up the other rook. And also after 32.Kb1 Qa1 33.Kc2 Rc8+ Black wins material.
Our silicon friend says 30...Ng4!! is the best move in this position. After the forced 31.hxg4, Black continues with 31...Qa4+ (diagram).
Now if 32.b3 Qa2+ picks up the loose rook on g2.
If 32.Kd2 Bg5+ picks up the other rook. And also after 32.Kb1 Qa1 33.Kc2 Rc8+ Black wins material.
Position from the game Cabrera Pino-Basso after 30.Kc2. Black is much better, if not winning and played the logical 30...Ra3, which is around -4 according to the engine.
Can you guess the move Stockie suggests as even better?
#chesspunks
Can you guess the move Stockie suggests as even better?
#chesspunks
March 25, 2025 at 8:42 PM
Position from the game Cabrera Pino-Basso after 30.Kc2. Black is much better, if not winning and played the logical 30...Ra3, which is around -4 according to the engine.
Can you guess the move Stockie suggests as even better?
#chesspunks
Can you guess the move Stockie suggests as even better?
#chesspunks
Solution:
@meermaurits.bsky.social don't read if you are still trying to solve this.
After 1...Nxd4! (tactics) 2.Qxd4 (2.Bxc4 Bxc5! with the threat of 3...Nf3+) Black continues with the amazing quiet move 2...Qa7!! threatening 3...Bxc5.
#chesspunks
@meermaurits.bsky.social don't read if you are still trying to solve this.
After 1...Nxd4! (tactics) 2.Qxd4 (2.Bxc4 Bxc5! with the threat of 3...Nf3+) Black continues with the amazing quiet move 2...Qa7!! threatening 3...Bxc5.
#chesspunks
March 1, 2025 at 9:15 AM
Solution:
@meermaurits.bsky.social don't read if you are still trying to solve this.
After 1...Nxd4! (tactics) 2.Qxd4 (2.Bxc4 Bxc5! with the threat of 3...Nf3+) Black continues with the amazing quiet move 2...Qa7!! threatening 3...Bxc5.
#chesspunks
@meermaurits.bsky.social don't read if you are still trying to solve this.
After 1...Nxd4! (tactics) 2.Qxd4 (2.Bxc4 Bxc5! with the threat of 3...Nf3+) Black continues with the amazing quiet move 2...Qa7!! threatening 3...Bxc5.
#chesspunks
Reposted by John Cornelisse
Reposted by John Cornelisse
👑 Jane Fonda with a mic drop
"Empathy is not weak or "woke." And, by the way, "woke" just means you give a damn about other people."
"Empathy is not weak or "woke." And, by the way, "woke" just means you give a damn about other people."
February 24, 2025 at 2:23 AM
👑 Jane Fonda with a mic drop
"Empathy is not weak or "woke." And, by the way, "woke" just means you give a damn about other people."
"Empathy is not weak or "woke." And, by the way, "woke" just means you give a damn about other people."
From the book Forcing Chess Moves by Charles Hertan. In the chapter about Quiet forcing moves. I did not solve this one, can you? Black to move.
#chesspunks
#chesspunks
February 23, 2025 at 5:12 PM
From the book Forcing Chess Moves by Charles Hertan. In the chapter about Quiet forcing moves. I did not solve this one, can you? Black to move.
#chesspunks
#chesspunks