MESON Chess Problem Database
Problem Display
PID: 21421 (2rN2br/2k2pbR/1R4P1/P3NB2/4pQ1B/2K5/8/8 w - - 0 1)
Anderson, Gerald Frank
1st Prize, BCPJ (June), 1919
#2
10 + 7
| 5294 | BCPJ (August) | 1919 |
| 2740 | Adventures of my Chessmen | 1924 |
| 16055 | HGM Weenink (Euwe/Niemeijer/Rueb/Trotsenburg) | 1932 |
| 56 | The Problemist | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Rb8
- 2.Rc6#
- 1...Bxe5+
- 2.Qxe5#
- 1...Bf6
- 2.Se6#
- 1...Bh6
- 2.Se6#
- 1...Bf8
- 2.Se6#
- 1...e3
- 2.Qc4#
- 1...f6
- 2.Sec6#
- 2.Sef7#
- 1...Rb8
- Tries
- 1.Kb2?
- threat
- 2.Qc1#
- 1...Bxe5+
- 2.Qxe5#
- 1...Bf6
- 2.Se6#
- 1...f6
- 2.Sec6#
- 2.Sef7#
- 1...Bh6
- 2.Se6#
- 1...Bf8
- 2.Se6#
- 1...e3
- 2.Qc4#
- 1...fxg6!
- threat
- 1.Kb4?
- threat
- 2.Qc1#
- 1...Bxe5
- 2.Qxe5#
- 1...fxg6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sec6#
- 2.Sxg6#
- 1...Bf6
- 2.Se6#
- 1...f6
- 2.Sec6#
- 2.Sef7#
- 1...Bh6
- 2.Se6#
- 1...e3
- 2.Qc4#
- 1...Bf8+!
- threat
- 1.Bf6?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sec6#
- 2.Sd7#
- 2.Sexf7#
- 1...Bxf6
- 2.Se6#
- 1...fxg6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sec6#
- 2.Sxg6#
- 2.Sd7#
- 2.Sef7#
- 1...Ra8
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sec6#
- 2.Sexf7#
- 1...Rb8
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sec6#
- 2.Sexf7#
- 2.Rc6#
- 1...Bh6
- 2.Se6#
- 1...Bf8
- 2.Se6#
- 1...Rxd8!
- threat
- 1.Be7?
- threat
- 2.Rb7#
- 1...Bxe5+
- 2.Qxe5#
- 1...Rb8
- 2.Rc6#
- 1...Rxd8!
- threat
- 1.Rxg7?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sec6#
- 2.Sd7#
- 2.Sexf7#
- 2.Se6#
- 1...Rxh4
- 2.Se6#
- 1...Ra8
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sec6#
- 2.Sexf7#
- 1...Rb8
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sec6#
- 2.Sexf7#
- 2.Rc6#
- 1...Rxd8!
- threat
- 1.Qd2?
- threat
- 2.Rb7#
- 2.Qd6#
- 2.Qd7#
- 1...Rxd8
- 2.Bxd8#
- 2.Qxd8#
- 1...Rb8
- 2.Rc6#
- 2.Qd6#
- 2.Qd7#
- 1...Bf8
- 2.Se6#
- 2.Rb7#
- 2.Qd7#
- 1...Bxe5+!
- threat
- 1.Qxe4?
- threat
- 2.Qc6#
- 2.Qb7#
- 2.Qc4#
- 1...Bxe5+
- 2.Qxe5#
- 1...fxg6
- 2.Qc6#
- 2.Qb7#
- 1...Bf6
- 2.Se6#
- 1...Rb8
- 2.Rc6#
- 2.Qc6#
- 2.Qc4#
- 1...Bf8
- 2.Se6#
- 2.Qc6#
- 2.Qb7#
- 1...f6!
- threat
- 1.Kb2?
- Keys
- 1.Kb3!
- threat
- 2.Qc1#
- 1...fxg6+
- 2.Sc4#
- 1...f6+
- 2.Sef7#
- 1...Bxe5
- 2.Qxe5#
- 1...Bf6
- 2.Se6#
- 1...Bh6
- 2.Se6#
- 1...Bf8
- 2.Se6#
- 1...e3
- 2.Qc4#
- threat
- 1.Kb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(e);SBLOCK::R1(G)
- B(d);CHECK,OGATE,P_SPINB(d),P_SPINP(c),XS(E)::QAB(B),XB(d)
- B(d);P_SPINP(c)::S(J)
- B(d);N_PINS(E),P_SPINP(c)::S(J)
- P(a);OGATE::QAR(B)
- Tries
- Try
- K(A);S_FLIGHT
- Threat
- QAR(B)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),P_SPINP(c),XS(E)::QAB(B),XB(d)
- B(d);P_SPINP(c)::S(J)
- B(d);N_PINS(E),P_SPINP(c)::S(J)
- P(a);OGATE::QAR(B)
- Refutation
- P(c);P_SPINB(d),XP(H)
- Try
- K(A);N_SPINS(E),S_FLIGHT
- Threat
- QAR(B)
- Vars
- B(d);OGATE,P_SPINB(d),P_SPINP(c),XS(E)::QAB(B),XB(d)
- B(d);P_SPINP(c)::S(J)
- P(a);OGATE::QAR(B)
- Refutation
- B(d);CHECK,P_SPINP(c)
- Try
- B(C);N_SPINS(E)
- Threat
- DUALS(7)
- Vars
- B(d);P_PINS(E),P_SPINP(c),XB(C)::S(J)
- B(d);P_SPINP(c)::S(J)
- Refutation
- R(e);XS(J)
- Try
- B(C);
- Threat
- R1(G)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XS(E)::QAB(B),XB(d)
- R(e);SBLOCK::R1(G)
- Refutation
- R(e);XS(J)
- Try
- R(I);N_SPINS(E),P_PINP(c),XB(d)
- Threat
- DUALS(8)
- Vars
- R(g);XB(C)::S(J)
- Refutation
- R(e);XS(J)
- Try
- Q(B);
- Threat
- DUALS(3)
- Refutation
- B(d);CHECK,P_SPINP(c),XS(E)
- Try
- Q(B);XP(a)
- Threat
- DUALS(3)
- Vars
- B(d);CHECK,OGATE,P_SPINP(c),XS(E)::QAB(B),XB(d)
- B(d);P_SPINP(c)::S(J)
- Refutation
- P(c);N_PINS(E),P_SPINB(d)
- Try
- Actual
- K(A);N_SPINS(E),P-FLIGHT
- Threat
- QAR(B)
- Vars
- P(c);CHECK,P_SPINB(d),XP(H)::QAB(B)+S(E)
- P(c);CHECK,P_SPINB(d)::QAB(B)+S(E)
- B(d);OGATE,P_SPINB(d),P_SPINP(c),XS(E)::QAB(B),XB(d)
- B(d);P_SPINP(c)::S(J)
- P(a);OGATE::QAR(B)
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).