MESON Chess Problem Database
Problem Display
PID: 10951 (2Q1N2k/5B2/3b2P1/4Rp2/3B4/8/7K/8 w - - 0 1)
Shinkman, William Anthony
Detroit Free Press, 1880
#2
7 + 3
| 3925 | The Golden Argosy | 1929 |
SOLUTION
- SOUND
- Sets
- 1...Ba3
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rxf5#
- 2.Re6#
- 2.Re7#
- 1...Bb4
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rxf5#
- 2.Re6#
- 2.Re7#
- 1...Bc5
- 2.Rxc5#
- 1...Bxe5+
- 2.Bxe5#
- 1...Be7
- 2.Rxe7#
- 1...f4
- 2.Rh5#
- 2.Qh3#
- 1...Ba3
- Tries
- 1.Sf6+?
- 1...Bf8
- 2.Qxf8#
- 1...Kg7!
- 1...Bf8
- 1.Sc7+?
- 1...Bf8
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rxf5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 2.Qxf8#
- 1...Kg7!
- 1...Bf8
- 1.Sg7+?
- 1...Bf8
- 2.Qxf8#
- 1...Kxg7!
- 1...Bf8
- 1.Qxf5?
- threat
- 2.Qh3#
- 2.Qh5#
- 2.Qf6#
- 2.g7#
- 1...Bxe5+
- 2.Bxe5#
- 2.Qxe5#
- 1...Be7
- 2.Rxe7#
- 2.Qh5#
- 2.g7#
- 1...Bf8!
- threat
- 1.Qa6?
- 1...Bxe5+
- 2.Bxe5#
- 1...Bc7
- 2.Qf6#
- 1...Ba3
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rxf5#
- 2.Re6#
- 2.Re7#
- 2.Qf6#
- 1...Bb4
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rxf5#
- 2.Re6#
- 2.Re7#
- 2.Qf6#
- 1...Bc5
- 2.Rxc5#
- 2.Qf6#
- 1...Be7
- 2.Rxe7#
- 1...Bb8
- 2.Qf6#
- 1...f4
- 2.Rh5#
- 1...Bf8!
- 1...Bxe5+
- 1.Qc1?
- threat
- 2.Qh6#
- 1...Bxe5+
- 2.Bxe5#
- 1...f4
- 2.Rh5#
- 1...Bf8!
- threat
- 1.Qc3?
- threat
- 2.Qh3#
- 1...Bxe5+
- 2.Bxe5#
- 1...Be7
- 2.Rxe7#
- 1...Bf8!
- threat
- 1.Qc6?
- 1...Bxe5+
- 2.Bxe5#
- 1...Bc7
- 2.Qf6#
- 1...Ba3
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rxf5#
- 2.Re6#
- 2.Re7#
- 2.Qf6#
- 1...Bb4
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rxf5#
- 2.Re6#
- 2.Re7#
- 2.Qf6#
- 1...Bc5
- 2.Rxc5#
- 2.Qf6#
- 1...Be7
- 2.Rxe7#
- 1...Bb8
- 2.Qf6#
- 1...f4
- 2.Rh5#
- 1...Bf8!
- 1...Bxe5+
- 1.Qd8?
- threat
- 2.Qh4#
- 2.Qf6#
- 1...Bxe5+
- 2.Bxe5#
- 1...Be7
- 2.Rxe7#
- 1...Bf8!
- threat
- 1.Sf6+?
- Keys
- 1.Qc5!
- 1...Bxe5+
- 2.Bxe5#
- 2.Qxe5#
- 1...Bxc5
- 2.Rxc5#
- 1...Bc7
- 2.Qf8#
- 1...Be7
- 2.Rxe7#
- 1...Bb8
- 2.Qf8#
- 1...Bf8
- 2.Qxf8#
- 1...f4
- 2.Rh5#
- 1...Bxe5+
- 1.Qc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- B(b);N_PINR(C)::B(B)+R(C),XB(b)
- B(b);CHECK,OGATE,P_SPINB(b),XR(C)::B(B),XB(b)
- Tries
- Try
- S(G);CHECK
- Vars
- B(b);N_GUARD,N_PINR(C),P_SPINB(b)::QAR2(F),XB(b)
- Refutation
- K(c);S_FLIGHT
- Try
- S(G);CHECK
- Refutation
- K(c);S_FLIGHT
- Try
- S(G);CHECK
- Vars
- B(b);N_GUARD,N_PINR(C),P_SPINB(b)::QAR2(F),XB(b)
- Refutation
- K(c);S_FLIGHT,XS(G)
- Try
- Q(F);XP(a)
- Threat
- DUALS(4)
- Refutation
- B(b);N_PINR(C)
- Try
- Q(F);
- Vars
- B(b);CHECK,OGATE,P_SPINB(b),XR(C)::B(B),XB(b)
- B(b);OGATE::QAB(F)
- B(b);N_PINR(C)::B(B)+R(C),XB(b)
- P(a);N_PINR(C)::B(B)+R(C),DCHECK
- Refutation
- B(b);N_PINR(C)
- Try
- Q(F);
- Threat
- QAR2(F)
- Vars
- B(b);CHECK,OGATE,P_SPINB(b),XR(C)::B(B),XB(b)
- P(a);N_PINR(C)::B(B)+R(C),DCHECK
- Refutation
- B(b);N_PINR(C)
- Try
- Q(F);
- Threat
- QAR(F)
- Vars
- B(b);CHECK,OGATE,P_SPINB(b),XR(C)::B(B),XB(b)
- B(b);N_PINR(C)::B(B)+R(C),XB(b)
- Refutation
- B(b);N_PINR(C)
- Try
- Q(F);
- Vars
- B(b);CHECK,OGATE,P_SPINB(b),XR(C)::B(B),XB(b)
- B(b);OGATE::QAB(F)
- B(b);N_PINR(C)::B(B)+R(C),XB(b)
- P(a);N_PINR(C)::B(B)+R(C),DCHECK
- Refutation
- B(b);N_PINR(C)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,OGATE,P_SPINB(b),XR(C)::B(B),XB(b)
- B(b);N_PINR(C)::B(B)+R(C),XB(b)
- Refutation
- B(b);N_PINR(C)
- Try
- Actual
- Q(F);
- Vars
- B(b);N_PINR(C),XQ(F)::B(B)+R(C),XB(b)
- B(b);OGATE::QAR2(F)
- B(b);N_PINR(C)::B(B)+R(C),XB(b)
- B(b);N_PINR(C),OGATE::QAR2(F),XB(b)
- P(a);N_PINR(C)::B(B)+R(C),DCHECK
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).