By accident I found a nasty bug in Fizbo 2. Have a look at the best variation for move 11.
I also include the analysis tree (see below game notation)
[pgn][Event "Turnier Schach Senioren Arena"]
[Site "https://lichess.org/UJnZKZsw"]
[Date "2020.04.23"]
[Round "?"]
[White "Hreggi"]
[Black "Paul-26b"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1904"]
[BlackElo "1510"]
[Annotator "Utzinger,Kurt"]
[PlyCount "49"]
[EventDate "2020.??.??"]
1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 c4 5. b3 b5 6. a4 Bd7 7. axb5 Bxb5 8. bxc4
Bxc4 9. Bxc4 dxc4 10. Qe2 Qd5 11. O-O ({Fizbo 2:} 11. Rxa7 Rxa7 12. Qxc4 Qxc4
13. Nc3 Qxc3+ 14. Nd2 Qxd2+ {[%eval 215,25]}) 11... Bb4 12. c3 Be7 13. Nbd2 Nh6
14. Nxc4 Nf5 15. g4 Nh4 16. Nxh4 Bxh4 17. Ra5 Qc6 18. Nd6+ Kf8 19. Rc5 Qd7 20.
Rc8+ Bd8 21. Qe4 Ke7 22. Qxa8 Na6 23. Ba3 Nc7 24. Nf5+ Ke8 25. Nxg7# 1-0
[/pgn]
32: Hreggi - Paul-26b 1-0, Turnier Schach Senioren Arena 2020
rn2kbnr/p4ppp/4p3/3qP3/2pP4/5N2/2P1QPPP/RNB1K2R w KQkq - 0 1
Analysis by Fizbo 2:
11.0-0 Se7 12.Sa3 Sec6 13.Dxc4 Dd8 14.c3 Le7
White is clearly better: +- (1.94) Depth: 10/18 00:00:00
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is better: +/- (1.22 --) Depth: 11/18 00:00:00
11.0-0 Se7 12.Sa3 Sec6 13.Dxc4 Dd8 14.c3 Le7
White is clearly better: +- (1.94) Depth: 11/18 00:00:00
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is better: +/- (1.26 --) Depth: 12/19 00:00:00
11.c3 Sd7 12.0-0 Sb6 13.Sfd2 Le7 14.Se4 f5
White is clearly better: +- (1.72) Depth: 12/19 00:00:00
11.0-0 a5 12.c3 Se7 13.Sbd2 Dc6 14.Dxc4 a4
White is clearly better: +- (2.12) Depth: 12/21 00:00:00
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +/- (1.48 --) Depth: 13/24 00:00:00 740kN
11.c3 Sd7 12.Sbd2 Sb6 13.Se4 a5 14.0-0 a4
White is clearly better: +- (1.81) Depth: 13/24 00:00:00 903kN
11.h3 Se7 12.0-0 Sbc6 13.Ta4 Sxd4 14.Sxd4 Dxd4
White is clearly better: +- (1.87) Depth: 13/26 00:00:00 972kN
11.0-0 Sd7 12.Sc3 Dc6 13.Sd2 Sb6 14.Sde4 Lb4
White is clearly better: +- (1.98) Depth: 13/26 00:00:00 1560kN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +/- (1.38 --) Depth: 14/26 00:00:00 1560kN
11.h3 Se7 12.0-0 Sbc6 13.Ta4 Sxd4 14.Sxd4 Dxd4
White is clearly better: +- (1.61) Depth: 14/26 00:00:00 1676kN
11.0-0 Sd7 12.Sc3 Dc6 13.Se4 a5 14.Sfd2 Sb6
White is clearly better: +- (1.98) Depth: 14/26 00:00:00 1754kN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +/- (1.38 --) Depth: 15/26 00:00:00 1790kN
11.c3 Sd7 12.Sbd2 Sb6 13.Se4 a5 14.0-0 Le7
White is clearly better: +- (1.81) Depth: 15/26 00:00:00 2673kN
11.0-0 Se7 12.Sa3 Sec6 13.Sxc4 Le7 14.c3 0-0
White is clearly better: +- (2.01) Depth: 15/29 00:00:01 4982kN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +/- (1.41 --) Depth: 16/32 00:00:01 4982kN
11.c3 Se7 12.Sbd2 Dd7 13.Sxc4 Sd5 14.Ld2 Le7
White is clearly better: +- (1.69) Depth: 16/32 00:00:01 6074kN
11.0-0 Dc6 12.c3 Se7 13.Sfd2 Sd5 14.Sxc4 Le7
White is clearly better: +- (2.22) Depth: 16/32 00:00:01 6077kN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (1.62 --) Depth: 17/32 00:00:01 6427kN
11.c3 Se7 12.0-0 Sec6 13.Sfd2 Sa5 14.Se4 h6
White is clearly better: +- (1.76) Depth: 17/32 00:00:02 8500kN
11.0-0 Se7 12.Sa3 Sec6 13.Sxc4 Sxd4 14.Sxd4 Dxd4
White is clearly better: +- (2.47) Depth: 17/32 00:00:02 9904kN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (1.87 --) Depth: 18/32 00:00:02 9904kN
11.0-0 Se7 12.Sa3 Sec6 13.Dxc4 Dd8 14.Td1 Le7
White is clearly better: +- (2.30) Depth: 18/32 00:00:02 11447kN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (1.70 --) Depth: 19/32 00:00:02 11460kN
11.0-0 Se7 12.Sa3 Sec6 13.Dxc4 Dd8 14.Td1 Le7
White is clearly better: +- (2.36) Depth: 19/32 00:00:03 14580kN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (1.76 --) Depth: 20/33 00:00:03 16697kN
11.0-0 Se7 12.Sa3 Sec6 13.Dxc4 Dd8 14.Td1 Le7
White is clearly better: +- (2.26) Depth: 20/33 00:00:04 21243kN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (1.66 --) Depth: 21/35 00:00:04 21243kN
11.c3 Sd7 12.Sbd2 Sb6 13.Se4 a5 14.0-0 a4
White is clearly better: +- (1.91) Depth: 21/37 00:00:12 70546kN
11.0-0 Se7 12.Sa3 Sec6 13.Sxc4 Le7 14.Td1 0-0
White has a decisive advantage: +- (2.79) Depth: 21/37 00:00:20 117MN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (2.19 --) Depth: 22/45 00:00:20 117MN
11.0-0 Se7 12.Sa3 Sc8 13.Sxc4 Lb4 14.Se3 Dd7
White has a decisive advantage: +- (2.82) Depth: 22/45 00:00:27 161MN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (2.22 --) Depth: 23/45 00:00:27 161MN
11.0-0 Se7 12.Sa3 Sc8 13.Sxc4 Le7 14.Se3 Db7
White has a decisive advantage: +- (2.76) Depth: 23/45 00:00:31 180MN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (2.16 --) Depth: 24/45 00:00:31 180MN
11.0-0 Se7 12.Sa3 Sc8 13.Sxc4 Le7 14.Se3 Db7
White has a decisive advantage: +- (2.75) Depth: 24/45 00:00:36 215MN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (2.15 --) Depth: 25/45 00:00:36 215MN
11.0-0 Se7 12.Sa3 Sc8 13.Sxc4 Le7 14.Se3 Db7
White has a decisive advantage: +- (2.84) Depth: 25/45 00:01:23 539MN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (2.24 --) Depth: 26/46 00:01:23 539MN
11.0-0 Se7 12.Sa3 Sc8 13.Sxc4 Le7 14.Se3 Db7
White has a decisive advantage: +- (2.72) Depth: 26/46 00:01:41 625MN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (2.12 --) Depth: 27/48 00:01:42 625MN
11.0-0 Se7 12.Sa3 Sc8 13.Sxc4 Le7 14.Se3 Db7
White has a decisive advantage: +- (2.77) Depth: 27/48 00:02:06 782MN
11.Txa7 Txa7 12.Dxc4 Dxc4 13.Sc3 Dxc3+ 14.Sd2 Dxd2+
White is clearly better: +- (2.17 --) Depth: 28/48 00:02:07 782MN
(swissman, 26.04.2020)
Bug in Fizbo 2
Moderator: Ras