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Re1 isn't that hard for Alterego. FEN: rnb2r2/p3bpkp/1ppq3N/6p1/Q7/2P3P1/P4PBP/R1B2RK1 w - - 0 19 Alterego x64: 8 00:00 20k 0 +2,84 Ng4 8 00:00 22k 1.491k +2,83 Ng4 8 00:00 29k 1.926k +3,53 Ng4 8 00:00 39k 2.609k +3,62 Ng4 Qd3 Re1 Be6 Re3 Qd6 Rb1 b5 8 00:00 58k 1.887k +3,87 Ng4 Qe6 Qd4+ Kg8 Qe5 Qxe5...

FEN: 5bk1/r5p1/7p/2p1N3/4PP2/1P1P2Pb/2P4P/2R4K b - - 2 1 Alterego x64: 8 00:00 21k 164k -3,67 Ra2 Nc4 Be6 Kg1 h5 Ne5 Bd6 8 00:00 21k 164k -3,67 Ra2 Nc4 Be6 Kg1 h5 Ne5 Bd6 10 00:00 35k 250k -3,97 Ra2 Nc4 h5 Kg1 Be7 Kf2 h4 Ne5 10 00:00 38k 271k -3,77 Ra2 10 00:00 38k 271k -3,77 Ra2 11 00:00 54k 386k ...

It took 32 seconds for Alterego. FEN: 2r4k/1b2b2p/1P6/4q3/Q1p1pNp1/P1PrP1PP/7K/BR1R4 b - - 3 44 Alterego x64: 8 00:00 66k 846k -0,55 gxh3 Qa7 Bc6 Nxh3 Rf8 b7 Qh5 b8Q Qe2+ Nf2 Qxf2+ Kh3 8 00:00 108k 862k -0,91 Rcd8 hxg4 Qf6 Rxd3 exd3 Qa7 Qc6 e4 d2 Nd5 9 00:00 114k 811k -1,01 Rcd8 9 00:00 118k 836k -1...

I am glad to see that. I think stockfish after a little search it just sticks one move for too long. Looks like rainbow serpent doesn't have that behavior. By the way M8R is my private engine so its quite normal nobody knows.

Hello Eren, I don't know M8R but thanks for the analysis! Here c4 seems edged out just a little by Kb1 at depth 25 and 26 but very close. Program has a lot of hash knowledge at this point, but mainly after Kb1 Be7 (I think the rest has been wiped out because I went to the very end of the Kb1 Be7 li...

What i want to know is this move Nf5! impressive as it may be, is it winning? The consensus is that Nakamura blundered with Rb8? and that Bxf5 was needed, is the + 1 evaluation enough to win? The pgn gives 23. c4 but Stockfish plays Kb1 first, then c4. But it may just be a transposition. Some deepe...

It is just bad because you can not move your piece unless you lost your positional/material advantage.

Is there any deep learning chess engine which has active development ? I know giraffe but it's discontinued. If you know some of it please share. Thanks.

Artxzta found Bd5 but not quickly. FEN: 1r3q2/2R3pk/p2P1p2/1p5b/2pR4/P6P/1P3BB1/6K1 w - - 0 34 Artxzta x64: 1 00:00 6 0 -3,61 Rxg7+ Kxg7 1 00:00 48 0 -3,45 Rcxc4 bxc4 1 00:00 87 0 -2,77 Rdxc4 bxc4 1 00:00 107 0 +0,12 Re7 1 00:00 160 0 +0,26 d7 Kg8 Rh4 1 00:00 170 0 +0,27 Rh4 1 00:00 257 0 +0,27 Rh4 ...

Some people expect a lot of elo jump when the old programmers come back. In reality, both Vas and Houdart are commercial programmers and they did not come back for a long time probably because they cant do reasonable elo jump to sustain their business. So similar story like Vas´ Rybka 5(fritz 15), ...