Does anyone Know The Longest Checkmate Given By A Chess Computer?

Please Post Any Games in .pgn Format so we can All Play through the Game...and if Possible the Game details Players etc. and of course the Length of the Checkmate!

A.R.B

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Does anyone Know The Longest Checkmate Given By A Chess Computer?

Please Post Any Games in .pgn Format so we can All Play through the Game...and if Possible the Game details Players etc. and of course the Length of the Checkmate!

A.R.B

Below Looks Longer!

A.R.B

Longest Forced Check Mates/Conversions: So Far!?

3 Pieces:

KP-K, 28 moves DTM, 19 moves DTC.

4 Pieces:

KR-KN, 40 moves DTM [27 moves DTC].

KBN-K, 33 moves DTC&M

KQ-KR, 31 moves DTC (that is, capturing the rook)

KQ-KP, 27 moves DTC

5 Pieces:

KPP-KP, 127 moves DTM (turning into a KQP-KQ win in 122).

KQP-KQ, 124 moves DTM, 114 moves DTC.

KNN-KP, 115 moves DTM, 114 moves DTC, 82 moves DTZ (distance to zeroing - meaning an irreversible move, one that puts the OTB 50-move count back to zero; in this case a pawn move).

Other maximal wins of over 50 moves include (highlighted are the two most practical by far):

KQ-KRP, 79 moves DTC; KBN-KN, 76 moves DTC; KQ-KBB, 71 moves DTC; KBB-KN, 66 moves DTC; KQ-KNN, 63 moves DTC; KRB-KB, 62 moves DTC; KQR-KQ, 60 moves DTC; KRP-KR, 60 moves DTC; KRB-KR, 59 moves DTC.

6 Pieces:

KRN-KNN, 262 moves DTM, 243 moves DTC.

KRRP-KQ, 253 moves DTM.

(KRP-KNN and KRN-KNP of 253 and 252 moves DTM respectively are essentially of the record endgame type, with a N promotion on move 1 in both cases. Other 200+ setups also turn quickly into the one of the two above following promotions.)

KRB-KNN, 238 moves DTM, 223 moves DTC.

KRN-KBN, 209 moves DTM, 190 moves DTC.

KQPP-KQ, 182 moves DTM.

KBBP-KR, 180 moves DTM.

KQN-KRR, 174 moves DTM, 153 moves DTC.

7 Pieces:

KQN-KRBN, 517 moves DTC [+8 to mate] (Entry No.316)

KQBN-KQB (opp. color B), 330 moves DTC (Entry No.311)

KQBN-KQN, 317 moves DTC [+33 to mate] (Entry No.311)

KRRN-KRR, 290 moves DTC [+8 to mate] (Entry No.298)

A.R.B

Longest Forced Check Mates/Conversions: So Far!?

3 Pieces:

KP-K, 28 moves DTM, 19 moves DTC.

4 Pieces:

KR-KN, 40 moves DTM [27 moves DTC].

KBN-K, 33 moves DTC&M

KQ-KR, 31 moves DTC (that is, capturing the rook)

KQ-KP, 27 moves DTC

5 Pieces:

KPP-KP, 127 moves DTM (turning into a KQP-KQ win in 122).

KQP-KQ, 124 moves DTM, 114 moves DTC.

KNN-KP, 115 moves DTM, 114 moves DTC, 82 moves DTZ (distance to zeroing - meaning an irreversible move, one that puts the OTB 50-move count back to zero; in this case a pawn move).

Other maximal wins of over 50 moves include (highlighted are the two most practical by far):

KQ-KRP, 79 moves DTC; KBN-KN, 76 moves DTC; KQ-KBB, 71 moves DTC; KBB-KN, 66 moves DTC; KQ-KNN, 63 moves DTC; KRB-KB, 62 moves DTC; KQR-KQ, 60 moves DTC; KRP-KR, 60 moves DTC; KRB-KR, 59 moves DTC.

6 Pieces:

KRN-KNN, 262 moves DTM, 243 moves DTC.

KRRP-KQ, 253 moves DTM.

(KRP-KNN and KRN-KNP of 253 and 252 moves DTM respectively are essentially of the record endgame type, with a N promotion on move 1 in both cases. Other 200+ setups also turn quickly into the one of the two above following promotions.)

KRB-KNN, 238 moves DTM, 223 moves DTC.

KRN-KBN, 209 moves DTM, 190 moves DTC.

KQPP-KQ, 182 moves DTM.

KBBP-KR, 180 moves DTM.

KQN-KRR, 174 moves DTM, 153 moves DTC.

7 Pieces:

KQN-KRBN, 517 moves DTC [+8 to mate] (Entry No.316)

KQBN-KQB (opp. color B), 330 moves DTC (Entry No.311)

KQBN-KQN, 317 moves DTC [+33 to mate] (Entry No.311)

KRRN-KRR, 290 moves DTC [+8 to mate] (Entry No.298)

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LET THE CHESS DO THE TALKING! :)

the position ?sweetsum4u wrote:i have found longest mate #34 by critter 0.8 during server play . its probably best mate finder :D

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