MESON Chess Problem Database
Problem Display
PID: 6516 (Rb6/4Q3/1k6/3P4/P7/Bn6/8/3K4 w - - 0 1)
Bonner Feast, Frederick
Birmingham Post, 1931
#2
6 + 3
| 5501 | Chess Cameos | 1936 |
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Qa7#
- 1...Bg3
- 2.Qa7#
- 1...Bf4
- 2.Qa7#
- 1...Be5
- 2.Qa7#
- 1...Bd6
- 2.Qa7#
- 1...Ba7
- 2.Qxa7#
- 1...Bc7
- 2.Qb4#
- 1...Sa1
- 2.Bc5#
- 1...Sc1
- 2.Bc5#
- 1...Sd2
- 2.Bc5#
- 1...Sd4
- 2.Bc5#
- 1...Sa5
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Bh2
- Tries
- 1.Ke1?
- 1...Ba7
- 2.Qxa7#
- 1...Bc7
- 2.Qb4#
- 1...Bh2
- 2.Qa7#
- 1...Bf4
- 2.Qa7#
- 1...Be5
- 2.Qa7#
- 1...Bd6
- 2.Qa7#
- 1...Sa1
- 2.Bc5#
- 1...Sc1
- 2.Bc5#
- 1...Sd2
- 2.Bc5#
- 1...Sd4
- 2.Bc5#
- 1...Sa5
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Bg3+!
- 1...Ba7
- 1.Bb2?
- 1...Bd6
- 2.Qa7#
- 1...Ba7
- 2.Qxa7#
- 1...Bc7
- 2.Qb4#
- 1...Bh2
- 2.Qa7#
- 1...Bg3
- 2.Qa7#
- 1...Bf4
- 2.Qa7#
- 1...Be5
- 2.Qa7#
- 1...Sa1
- 2.Bd4#
- 1...Sc1
- 2.Bd4#
- 1...Sd2
- 2.Bd4#
- 1...Sd4
- 2.Bxd4#
- 1...Sa5
- 2.Bd4#
- 1...Sc5!
- 1...Bd6
- 1.Bb4?
- 1...Ba7
- 2.Qxa7#
- 1...Bh2
- 2.Qa7#
- 1...Bg3
- 2.Qa7#
- 1...Bf4
- 2.Qa7#
- 1...Be5
- 2.Qa7#
- 1...Bd6
- 2.Qa7#
- 1...Sa1
- 2.Ba5#
- 2.Bc5#
- 1...Sc1
- 2.Ba5#
- 2.Bc5#
- 1...Sd2
- 2.Ba5#
- 2.Bc5#
- 1...Sd4
- 2.Ba5#
- 2.Bc5#
- 1...Sa5
- 2.Bxa5#
- 2.Bc5#
- 1...Sc5
- 2.Ba5#
- 2.Bxc5#
- 1...Bc7!
- 1...Ba7
- 1.Ra7?
- threat
- 2.Qb7#
- 1...Bc7
- 2.Qxc7#
- 1...Sa5
- 2.Bc5#
- 2.Qc5#
- 2.Qe3#
- 1...Sc5
- 2.Bxc5#
- 2.Qxc5#
- 1...Bxa7!
- threat
- 1.Rxb8+?
- 1...Ka5
- 2.Qa7#
- 1...Ka6!
- 1...Ka5
- 1.Qc5+?
- 1...Kb7
- 2.Qc6#
- 1...Sxc5!
- 1...Kb7
- 1.Qd6+?
- 1...Kb7
- 2.Qxb8#
- 2.Qc6#
- 1...Bxd6!
- 1...Kb7
- 1.Qd8+?
- 1...Kb7
- 2.Qxb8#
- 1...Bc7!
- 1...Kb7
- 1.Qd7?
- threat
- 2.Qc6#
- 1...Ba7
- 2.Qxa7#
- 1...Sd4
- 2.a5#
- 1...Sa5!
- threat
- 1.a5+?
- 1...Kb5
- 2.Qb4#
- 1...Sxa5!
- 1...Kb5
- 1.Ke1?
- Keys
- 1.Bd6!
- 1...Bxd6
- 2.Qa7#
- 1...Ba7
- 2.Qxa7#
- 1...Bc7
- 2.Qxc7#
- 1...Sa1
- 2.Bc5#
- 1...Sc1
- 2.Bc5#
- 1...Sd2
- 2.Bc5#
- 1...Sd4
- 2.Bc5#
- 1...Sa5
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Bxd6
- 1.Bd6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- B(c);N_GUARD::QAB1(E)
- B(c);N_GUARD::QAB1(E),XB(c)
- B(c);SBLOCK::QAR2(E)
- S(a);N_GUARD::B(B)
- S(a);N_GUARD::B(B),XS(a)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- B(c);N_GUARD::QAB1(E),XB(c)
- B(c);SBLOCK::QAR2(E)
- B(c);N_GUARD::QAB1(E)
- S(a);N_GUARD::B(B)
- S(a);N_GUARD::B(B),XS(a)
- Refutation
- B(c);CHECK
- Try
- B(B);
- Vars
- B(c);N_GUARD::QAB1(E)
- B(c);N_GUARD::QAB1(E),XB(c)
- B(c);SBLOCK::QAR2(E)
- S(a);N_GUARD::B(B)
- S(a);N_GUARD::B(B),XS(a)
- Refutation
- S(a);
- Try
- B(B);
- Vars
- B(c);N_GUARD::QAB1(E),XB(c)
- B(c);N_GUARD::QAB1(E)
- Refutation
- B(c);
- Try
- R(F);
- Threat
- QAR1(E)
- Vars
- B(c);N_GUARD::QAB1(E),XB(c)
- Refutation
- B(c);XR(F)
- Try
- R(F);CHECK,XB(c)
- Vars
- K(b);S_FLIGHT::QAR2(E)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(E);CHECK
- Vars
- K(b);P-FLIGHT::QAB1(E)
- Refutation
- S(a);XQ(E)
- Try
- Q(E);CHECK
- Refutation
- B(c);XQ(E)
- Try
- Q(E);CHECK
- Vars
- K(b);P-FLIGHT::QAR1(E),XB(c)
- Refutation
- B(c);P_SPINB(c)
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- B(c);N_GUARD::QAB1(E),XB(c)
- S(a);N_GUARD::P(C)
- Refutation
- S(a);
- Try
- P(C);CHECK
- Vars
- K(b);P-FLIGHT::QAR1(E)
- Refutation
- S(a);XP(C)
- Try
- Actual
- B(B);
- Vars
- B(c);N_GUARD,XB(B)::QAB1(E)
- B(c);N_GUARD::QAB1(E),XB(c)
- S(a);N_GUARD::B(B)
- S(a);N_GUARD::B(B),XS(a)
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).