Schooner 2.2 can't see mate in 1

[CMCanavessi]

I just saw a game between Senpai 2.0 and Schooner 2.2 live, and I couldn't (and can't) believe my eyes. I have re-tested the same position several times and Schooner always plays the blunder move 10... Ne6, which is a mate in 1 for white.

[pgn][Event "Danger Zone"]
[Site "CCLS"]
[Date "2021.08.06"]
[Round "1"]
[White "Senpai 2.0"]
[Black "Schooner 2.2"]
[Result "1-0"]
[TimeControl "180+2"]
[Time "15:39:25"]
[Board "121"]
[Termination "mate"]
[Variant "chess960"]
[FEN "bbnnrkqr/pppppppp/8/8/8/8/PPPPPPPP/BBNNRKQR w HEhe - 0 1"]
[SetUp "1"]

1. c4 {+0.20/19 10066 5530743} f6 {+0.19/22 9354 13505487} 2. b3 {+0.25/21 3344 2259708} e5 {+0.04/22 5383 7832998}
3. f3 {+0.22/18 4229 2826553} d5 {-0.05/22 5614 8039976} 4. Qc5+ {+0.10/16 4435 3076034} Ne7 {-0.29/22 6183 8991921}
5. cxd5 {+0.08/20 10 4201728} b6 {-0.18/24 9672 14206632} 6. Qf2 {+0.07/22 10 6504448} Nxd5 {-0.26/22 6091 9038513}
7. e3 {-0.03/21 2080 5496786} Qf7 {-0.26/22 10213 15535343} 8. Nc3 {-0.07/19 3437 2592030} c5 {-0.19/21 6824 10209425}
9. O-O {-0.08/21 4695 7882172} O-O {+0.25/23 4714 7190275} 10. Qh4 {+0.03/19 2944 2245965} Ne6 {-0.17/23 9054 13801391}
11. Qxh7# {M+1/64 10 3176} 1-0[/pgn]

FEN: bb2rrk1/p4qpp/1p2np2/2pnp3/7Q/1PN1PP2/P2P2PP/BBN1RRK1 w - - 4 11

Schooner 2.1 x64:
Schooner 2.1 x64 by Dennis Sceviour, Canada
8 00:00,000 15k 15k -0,60 10. ... Bc6 11.Rxg1 f5 12.Bb2 Nxc3 13.dxc3 Rxg8 14.c4
9 00:00,010 29k 2.943k -0,52 10. ... Bc6 11.N1e2 Ne7 12.Rxg1 Ne6 13.Rd1 Rd8 14.Be4
10 00:00,020 35k 1.754k -0,54 10. ... Bc6 11.N1e2 Ne7 12.Rxg1 Ne6 13.Rd1 Rd8 14.Ng3
11 00:00,050 95k 1.899k -0,80 10. ... Ne7 11.N1e2 Ne6 12.Bb2 Rd8 13.Rd1 Rxg8 14.Rxg1
12 00:00,060 109k 1.819k -0,80 10. ... Ne7 11.N1e2 Ne6 12.Bb2 Rd8 13.Rd1 Rxg8 14.Rxg1
13 00:00,140 215k 1.535k -0,64 10. ... Ne7 11.N1e2 f5 12.d4 cxd4 13.exd4 e4 14.fxe4
14 00:00,270 424k 1.571k -0,66 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.Rxg1 Rd8 14.Rd1
15 00:00,350 549k 1.569k -0,58 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.Rxg1 Rd8 14.Rd1
16 00:00,430 676k 1.571k -0,61 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.Rxg1 Rd8 14.Rd1
17 00:00,610 962k 1.577k -0,62 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.d4 Rd8 14.dxe5
18 00:03,000 4.658k 1.553k -0,53 10. ... Rxg8 11.N1e2 Ne7 12.Qf2 Bc6 13.d4 cxd4 14.exd4
19 00:04,180 6.419k 1.536k -0,48 10. ... Rxg8 11.N1e2 Ne7 12.Qf2 Ne6 13.d4 cxd4 14.exd4
20 00:06,390 9.853k 1.542k -0,50 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 Bc6 14.Bc3
21 00:08,040 12.326k 1.533k -0,50 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 Bc6 14.Bc3
22 00:13,750 21.158k 1.539k -0,46 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 Bc6 14.Bc3
23 00:27,550 42.127k 1.529k -0,42 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
24 00:36,190 55.470k 1.533k -0,42 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
25 00:47,940 73.489k 1.533k -0,45 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
26 00:59,560 91.048k 1.529k -0,45 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
27 01:29,050 135.891k 1.526k -0,46 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a6 14.b4

[Chessqueen]

I just saw a game between Senpai 2.0 and Schooner 2.2 live, and I couldn't (and can't) believe my eyes. I have re-tested the same position several times and Schooner always plays the blunder move 10... Ne6, which is a mate in 1 for white.

[pgn][Event "Danger Zone"]
[Site "CCLS"]
[Date "2021.08.06"]
[Round "1"]
[White "Senpai 2.0"]
[Black "Schooner 2.2"]
[Result "1-0"]
[TimeControl "180+2"]
[Time "15:39:25"]
[Board "121"]
[Termination "mate"]
[Variant "chess960"]
[FEN "bbnnrkqr/pppppppp/8/8/8/8/PPPPPPPP/BBNNRKQR w HEhe - 0 1"]
[SetUp "1"]

1. c4 {+0.20/19 10066 5530743} f6 {+0.19/22 9354 13505487} 2. b3 {+0.25/21 3344 2259708} e5 {+0.04/22 5383 7832998}
3. f3 {+0.22/18 4229 2826553} d5 {-0.05/22 5614 8039976} 4. Qc5+ {+0.10/16 4435 3076034} Ne7 {-0.29/22 6183 8991921}
5. cxd5 {+0.08/20 10 4201728} b6 {-0.18/24 9672 14206632} 6. Qf2 {+0.07/22 10 6504448} Nxd5 {-0.26/22 6091 9038513}
7. e3 {-0.03/21 2080 5496786} Qf7 {-0.26/22 10213 15535343} 8. Nc3 {-0.07/19 3437 2592030} c5 {-0.19/21 6824 10209425}
9. O-O {-0.08/21 4695 7882172} O-O {+0.25/23 4714 7190275} 10. Qh4 {+0.03/19 2944 2245965} Ne6 {-0.17/23 9054 13801391}
11. Qxh7# {M+1/64 10 3176} 1-0[/pgn]

FEN: bb2rrk1/p4qpp/1p2np2/2pnp3/7Q/1PN1PP2/P2P2PP/BBN1RRK1 w - - 4 11

Schooner 2.1 x64:
Schooner 2.1 x64 by Dennis Sceviour, Canada
8 00:00,000 15k 15k -0,60 10. ... Bc6 11.Rxg1 f5 12.Bb2 Nxc3 13.dxc3 Rxg8 14.c4
9 00:00,010 29k 2.943k -0,52 10. ... Bc6 11.N1e2 Ne7 12.Rxg1 Ne6 13.Rd1 Rd8 14.Be4
10 00:00,020 35k 1.754k -0,54 10. ... Bc6 11.N1e2 Ne7 12.Rxg1 Ne6 13.Rd1 Rd8 14.Ng3
11 00:00,050 95k 1.899k -0,80 10. ... Ne7 11.N1e2 Ne6 12.Bb2 Rd8 13.Rd1 Rxg8 14.Rxg1
12 00:00,060 109k 1.819k -0,80 10. ... Ne7 11.N1e2 Ne6 12.Bb2 Rd8 13.Rd1 Rxg8 14.Rxg1
13 00:00,140 215k 1.535k -0,64 10. ... Ne7 11.N1e2 f5 12.d4 cxd4 13.exd4 e4 14.fxe4
14 00:00,270 424k 1.571k -0,66 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.Rxg1 Rd8 14.Rd1
15 00:00,350 549k 1.569k -0,58 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.Rxg1 Rd8 14.Rd1
16 00:00,430 676k 1.571k -0,61 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.Rxg1 Rd8 14.Rd1
17 00:00,610 962k 1.577k -0,62 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.d4 Rd8 14.dxe5
18 00:03,000 4.658k 1.553k -0,53 10. ... Rxg8 11.N1e2 Ne7 12.Qf2 Bc6 13.d4 cxd4 14.exd4
19 00:04,180 6.419k 1.536k -0,48 10. ... Rxg8 11.N1e2 Ne7 12.Qf2 Ne6 13.d4 cxd4 14.exd4
20 00:06,390 9.853k 1.542k -0,50 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 Bc6 14.Bc3
21 00:08,040 12.326k 1.533k -0,50 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 Bc6 14.Bc3
22 00:13,750 21.158k 1.539k -0,46 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 Bc6 14.Bc3
23 00:27,550 42.127k 1.529k -0,42 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
24 00:36,190 55.470k 1.533k -0,42 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
25 00:47,940 73.489k 1.533k -0,45 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
26 00:59,560 91.048k 1.529k -0,45 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
27 01:29,050 135.891k 1.526k -0,46 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a6 14.b4

Schooner needs a good NNUE Net

[Uri Blass]

No
You do not need a nnue net to see mate in 1.


NNUE does not help stockfish to find mates and when I do not know about positions when stockfish fails to see mate in 1
I know that thanks to NNUE stockfish became weaker in finding mates.

I do not know if it is the case with other engines who use NNUE and it may be interesting if other engines who use NNUE also became weaker in finding mates after implementing NNUE.

[Uri Blass]

I just saw a game between Senpai 2.0 and Schooner 2.2 live, and I couldn't (and can't) believe my eyes. I have re-tested the same position several times and Schooner always plays the blunder move 10... Ne6, which is a mate in 1 for white.

[pgn][Event "Danger Zone"]
[Site "CCLS"]
[Date "2021.08.06"]
[Round "1"]
[White "Senpai 2.0"]
[Black "Schooner 2.2"]
[Result "1-0"]
[TimeControl "180+2"]
[Time "15:39:25"]
[Board "121"]
[Termination "mate"]
[Variant "chess960"]
[FEN "bbnnrkqr/pppppppp/8/8/8/8/PPPPPPPP/BBNNRKQR w HEhe - 0 1"]
[SetUp "1"]

1. c4 {+0.20/19 10066 5530743} f6 {+0.19/22 9354 13505487} 2. b3 {+0.25/21 3344 2259708} e5 {+0.04/22 5383 7832998}
3. f3 {+0.22/18 4229 2826553} d5 {-0.05/22 5614 8039976} 4. Qc5+ {+0.10/16 4435 3076034} Ne7 {-0.29/22 6183 8991921}
5. cxd5 {+0.08/20 10 4201728} b6 {-0.18/24 9672 14206632} 6. Qf2 {+0.07/22 10 6504448} Nxd5 {-0.26/22 6091 9038513}
7. e3 {-0.03/21 2080 5496786} Qf7 {-0.26/22 10213 15535343} 8. Nc3 {-0.07/19 3437 2592030} c5 {-0.19/21 6824 10209425}
9. O-O {-0.08/21 4695 7882172} O-O {+0.25/23 4714 7190275} 10. Qh4 {+0.03/19 2944 2245965} Ne6 {-0.17/23 9054 13801391}
11. Qxh7# {M+1/64 10 3176} 1-0[/pgn]

FEN: bb2rrk1/p4qpp/1p2np2/2pnp3/7Q/1PN1PP2/P2P2PP/BBN1RRK1 w - - 4 11

Schooner 2.1 x64:
Schooner 2.1 x64 by Dennis Sceviour, Canada
8 00:00,000 15k 15k -0,60 10. ... Bc6 11.Rxg1 f5 12.Bb2 Nxc3 13.dxc3 Rxg8 14.c4
9 00:00,010 29k 2.943k -0,52 10. ... Bc6 11.N1e2 Ne7 12.Rxg1 Ne6 13.Rd1 Rd8 14.Be4
10 00:00,020 35k 1.754k -0,54 10. ... Bc6 11.N1e2 Ne7 12.Rxg1 Ne6 13.Rd1 Rd8 14.Ng3
11 00:00,050 95k 1.899k -0,80 10. ... Ne7 11.N1e2 Ne6 12.Bb2 Rd8 13.Rd1 Rxg8 14.Rxg1
12 00:00,060 109k 1.819k -0,80 10. ... Ne7 11.N1e2 Ne6 12.Bb2 Rd8 13.Rd1 Rxg8 14.Rxg1
13 00:00,140 215k 1.535k -0,64 10. ... Ne7 11.N1e2 f5 12.d4 cxd4 13.exd4 e4 14.fxe4
14 00:00,270 424k 1.571k -0,66 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.Rxg1 Rd8 14.Rd1
15 00:00,350 549k 1.569k -0,58 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.Rxg1 Rd8 14.Rd1
16 00:00,430 676k 1.571k -0,61 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.Rxg1 Rd8 14.Rd1
17 00:00,610 962k 1.577k -0,62 10. ... Ne7 11.N1e2 Ne6 12.Qf2 Rxg8 13.d4 Rd8 14.dxe5
18 00:03,000 4.658k 1.553k -0,53 10. ... Rxg8 11.N1e2 Ne7 12.Qf2 Bc6 13.d4 cxd4 14.exd4
19 00:04,180 6.419k 1.536k -0,48 10. ... Rxg8 11.N1e2 Ne7 12.Qf2 Ne6 13.d4 cxd4 14.exd4
20 00:06,390 9.853k 1.542k -0,50 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 Bc6 14.Bc3
21 00:08,040 12.326k 1.533k -0,50 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 Bc6 14.Bc3
22 00:13,750 21.158k 1.539k -0,46 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 Bc6 14.Bc3
23 00:27,550 42.127k 1.529k -0,42 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
24 00:36,190 55.470k 1.533k -0,42 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
25 00:47,940 73.489k 1.533k -0,45 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
26 00:59,560 91.048k 1.529k -0,45 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a5 14.Nc3
27 01:29,050 135.891k 1.526k -0,46 10. ... Ne6 11.Nxd5 Bxd5 12.Ne2 Rxg8 13.Rxg1 a6 14.b4

something is clearly wrong in the analysis becase moves like 11.Rxg1 or 12...Rxg8 are illegal moves.
A rook cannot capture the king of the same color.

[CMCanavessi]

something is clearly wrong in the analysis becase moves like 11.Rxg1 or 12...Rxg8 are illegal moves.
A rook cannot capture the king of the same color.

Yes, I think Schooner has some problems with Chess 960. It loses often by "illegal move".