MESON Chess Problem Database
Problem Display
PID: 103475 (5Q2/7N/4p3/p2pk3/R3b1p1/2P5/5P2/K2B4 w - - 0 1)
Bertrand, Ernest
La Presse, 1900
#2
7 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bb1
- 2.Qf4#
- 1...Bh1
- 2.Qf4#
- 1...Bc2
- 2.Qf4#
- 1...Bg2
- 2.Qf4#
- 1...Bd3
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 1...Bf5
- 2.Qb8#
- 1...Bg6
- 2.Qf4#
- 1...Bxh7
- 2.Qf4#
- 1...g3
- 2.f4#
- 1...Bb1
- Tries
- 1.Kb2?
- 1...Bxh7
- 2.Qf4#
- 1...Bb1
- 2.Qf4#
- 1...Bh1
- 2.Qf4#
- 1...Bc2
- 2.Qf4#
- 1...Bg2
- 2.Qf4#
- 1...Bd3
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 1...Bf5
- 2.Qb8#
- 1...Bg6
- 2.Qf4#
- 1...g3
- 2.f4#
- 1...d4!
- 1...Bxh7
- 1.Bc2?
- 1...Bxc2
- 2.Qf4#
- 1...Bxh7
- 2.Qf4#
- 1...Bh1
- 2.Qf4#
- 2.Qb8#
- 1...Bg2
- 2.Qf4#
- 2.Qb8#
- 1...Bd3
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 2.Qb8#
- 1...Bf5
- 2.Qb8#
- 1...Bg6
- 2.Qf4#
- 2.Qb8#
- 1...g3
- 2.f4#
- 1...d4!
- 1...Bxc2
- 1.Be2?
- 1...Bxh7
- 2.Qf4#
- 1...Bb1
- 2.Qf4#
- 1...Bh1
- 2.Qf4#
- 1...Bc2
- 2.Qf4#
- 1...Bg2
- 2.Qf4#
- 1...Bd3
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 1...Bf5
- 2.Qb8#
- 1...Bg6
- 2.Qf4#
- 1...g3
- 2.f4#
- 1...d4!
- 1...Bxh7
- 1.Bxg4?
- threat
- 2.Qb8#
- 2.f4#
- 1...Bxh7
- 2.Qf4#
- 2.f4#
- 1...Bf3
- 2.Qf4#
- 2.Qb8#
- 1...d4!
- threat
- 1.Rd4?
- 1...Bxh7
- 2.Qf4#
- 1...Bb1
- 2.Qf4#
- 1...Bh1
- 2.Qf4#
- 1...Bc2
- 2.Qf4#
- 1...Bg2
- 2.Qf4#
- 1...Bd3
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 1...Bf5
- 2.Qb8#
- 1...Bg6
- 2.Qf4#
- 1...g3
- 2.f4#
- 1...a4!
- 1...Bxh7
- 1.Qg7+?
- 1...Kf4
- 2.Qf6#
- 2.Qg5#
- 1...Kf5
- 2.Qf6#
- 2.Qg5#
- 1...Kd6!
- 1...Kf4
- 1.Qh8+?
- 1...Kf4
- 2.Qf6#
- 1...Kf5
- 2.Qf6#
- 1...Kd6!
- 1...Kf4
- 1.Kb2?
- Keys
- 1.Bb3!
- 1...Bxh7
- 2.Qf4#
- 1...Bb1
- 2.Qf4#
- 1...Bh1
- 2.Qf4#
- 1...Bc2
- 2.Qf4#
- 1...Bg2
- 2.Qf4#
- 1...Bd3
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 1...Bf5
- 2.Qb8#
- 1...Bg6
- 2.Qf4#
- 1...g3
- 2.f4#
- 1...d4
- 2.cxd4#
- 1...Bxh7
- 1.Bb3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);::QAB1(G)
- B(a);SBLOCK::QAB(G)
- B(a);XS(F)::QAB1(G)
- P(b);N_GUARD::P(C)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- B(a);XS(F)::QAB1(G)
- B(a);::QAB1(G)
- B(a);SBLOCK::QAB(G)
- P(b);N_GUARD::P(C)
- Refutation
- P(d);
- Try
- B(B);
- Vars
- B(a);XB(B)::QAB1(G)
- B(a);XS(F)::QAB1(G)
- B(a);::QAB1(G)
- B(a);::QAB(G)
- P(b);N_GUARD::P(C)
- Refutation
- P(d);
- Try
- B(B);
- Vars
- B(a);XS(F)::QAB1(G)
- B(a);::QAB1(G)
- B(a);SBLOCK::QAB(G)
- P(b);N_GUARD::P(C)
- Refutation
- P(d);
- Try
- B(B);XP(b)
- Threat
- DUALS(2)
- Refutation
- P(d);
- Try
- R(E);
- Vars
- B(a);XS(F)::QAB1(G)
- B(a);::QAB1(G)
- B(a);SBLOCK::QAB(G)
- P(b);N_GUARD::P(C)
- Refutation
- P(c);
- Try
- Q(G);CHECK
- Refutation
- K(e);S_FLIGHT
- Try
- Q(G);CHECK
- Vars
- K(e);P_SPINB(a),S_FLIGHT::QAR2(G)
- K(e);P-FLIGHT::QAR1(G)
- Refutation
- K(e);S_FLIGHT
- Try
- Actual
- B(B);
- Vars
- B(a);XS(F)::QAB1(G)
- B(a);::QAB1(G)
- B(a);SBLOCK::QAB(G)
- P(b);N_GUARD::P(C)
- P(d);OGATE::P(D),XP(d)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).