MESON Chess Problem Database
Problem Display
PID: 228859 (K2bR3/pNk1PpR1/1p1q4/1P2n1r1/5BB1/3r4/Q7/8 w - - 0 1)
ten Cate, Pieter
Association Belge, 1926
#2
9 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxe7
- 2.Rc8#
- 1...Sf3
- 2.exd8Q#
- 2.exd8B#
- 1...Sc4
- 2.exd8Q#
- 2.exd8B#
- 1...Sxg4
- 2.exd8Q#
- 1...Sg6
- 2.exd8Q#
- 2.exd8B#
- 1...Sd7
- 2.exd8Q#
- 1...f5
- 2.exd8Q#
- 1...f6
- 2.exd8Q#
- 2.exd8B#
- 1...Bxe7
- Tries
- 1.Rxf7?
- threat
- 2.exd8Q#
- 2.exd8B#
- 1...Qxe7
- 2.Qc4#
- 1...Bxe7
- 2.Rc8#
- 1...Sxg4
- 2.exd8Q#
- 2.exd8R#
- 1...Qa3
- 2.exd8Q#
- 2.exd8B#
- 1...Qb4
- 2.exd8Q#
- 2.exd8B#
- 1...Qc5
- 2.exd8Q#
- 2.exd8B#
- 1...Qd4
- 2.exd8Q#
- 2.exd8B#
- 1...Qd5
- 2.exd8Q#
- 2.exd8B#
- 1...Qc6
- 2.exd8Q#
- 2.exd8B#
- 1...Qf6
- 2.exd8Q#
- 2.exd8B#
- 1...Qg6
- 2.exd8Q#
- 2.exd8B#
- 1...Qh6
- 2.exd8Q#
- 2.exd8B#
- 1...Rd1
- 2.exd8Q#
- 2.exd8B#
- 1...Rd2
- 2.exd8Q#
- 2.exd8B#
- 1...Ra3
- 2.exd8Q#
- 2.exd8B#
- 1...Rb3
- 2.exd8Q#
- 2.exd8B#
- 1...Rc3
- 2.exd8Q#
- 2.exd8B#
- 1...Re3
- 2.exd8Q#
- 2.exd8B#
- 1...Rf3
- 2.exd8Q#
- 2.exd8B#
- 1...Rg3
- 2.exd8Q#
- 2.exd8B#
- 1...Rh3
- 2.exd8Q#
- 2.exd8B#
- 1...Rd4
- 2.exd8Q#
- 2.exd8B#
- 1...Rd5
- 2.exd8Q#
- 2.exd8B#
- 1...Rh5
- 2.exd8Q#
- 2.exd8B#
- 1...Rg6
- 2.exd8Q#
- 2.exd8B#
- 1...Rg7
- 2.exd8Q#
- 2.exd8B#
- 1...Rg8
- 2.exd8Q#
- 2.exd8B#
- 1...Sf3
- 2.exd8Q#
- 2.exd8S#
- 2.exd8B#
- 2.exd8R#
- 1...Sc4
- 2.exd8Q#
- 2.exd8S#
- 2.exd8B#
- 2.exd8R#
- 1...Sc6
- 2.exd8Q#
- 2.exd8B#
- 1...Sg6
- 2.exd8Q#
- 2.exd8B#
- 1...a5
- 2.exd8Q#
- 2.exd8B#
- 1...a6
- 2.exd8Q#
- 2.exd8B#
- 1...Sxf7!
- threat
- 1.Qc4+?
- 1...Qc6
- 2.Qxc6#
- 1...Sxc4
- 2.exd8Q#
- 2.exd8B#
- 1...Sc6
- 2.Qxc6#
- 2.exd8Q#
- 2.exd8B#
- 1...Qc5!
- 1...Qc6
- 1.Rxf7?
- Keys
- 1.Qxf7!
- threat
- 2.exd8Q#
- 2.exd8B#
- 1...Qxe7
- 2.Qc4#
- 1...Rxg7
- 2.exd8Q#
- 2.exd8B#
- 1...Bxe7
- 2.Rc8#
- 1...Sxg4
- 2.exd8Q#
- 2.exd8R#
- 1...Sxf7
- 2.exd8Q#
- 2.exd8B#
- 1...Qa3
- 2.exd8Q#
- 2.exd8B#
- 1...Qb4
- 2.exd8Q#
- 2.exd8B#
- 1...Qc5
- 2.exd8Q#
- 2.exd8B#
- 1...Qd4
- 2.exd8Q#
- 2.exd8B#
- 1...Qd5
- 2.exd8Q#
- 2.exd8B#
- 1...Qc6
- 2.exd8Q#
- 2.exd8B#
- 1...Qf6
- 2.exd8Q#
- 2.exd8B#
- 1...Qg6
- 2.exd8Q#
- 2.exd8B#
- 1...Qh6
- 2.exd8Q#
- 2.exd8B#
- 1...Rd1
- 2.exd8Q#
- 2.exd8B#
- 1...Rd2
- 2.exd8Q#
- 2.exd8B#
- 1...Ra3
- 2.exd8Q#
- 2.exd8B#
- 1...Rb3
- 2.exd8Q#
- 2.exd8B#
- 1...Rc3
- 2.exd8Q#
- 2.exd8B#
- 1...Re3
- 2.exd8Q#
- 2.exd8B#
- 1...Rf3
- 2.exd8Q#
- 2.exd8B#
- 1...Rg3
- 2.exd8Q#
- 2.exd8B#
- 1...Rh3
- 2.exd8Q#
- 2.exd8B#
- 1...Rd4
- 2.exd8Q#
- 2.exd8B#
- 1...Rd5
- 2.exd8Q#
- 2.exd8B#
- 1...Rh5
- 2.exd8Q#
- 2.exd8B#
- 1...Rg6
- 2.exd8Q#
- 2.exd8B#
- 1...Sf3
- 2.exd8Q#
- 2.exd8S#
- 2.exd8B#
- 2.exd8R#
- 1...Sc4
- 2.exd8Q#
- 2.exd8S#
- 2.exd8B#
- 2.exd8R#
- 1...Sc6
- 2.exd8Q#
- 2.exd8B#
- 1...Sg6
- 2.exd8Q#
- 2.exd8B#
- 1...a5
- 2.exd8Q#
- 2.exd8B#
- 1...a6
- 2.exd8Q#
- 2.exd8B#
- threat
- 1.Qxf7!
There are these versions: 229147
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- B(i);OGATE,XP(F)::R1(I)
- S(b);P_SPINQ(e)::PXB(i)=Q
- S(b);P_SPINQ(e),XB(C)::PXB(i)=Q
- P(h);::PXB(i)=Q
- Tries
- Try
- R(G);XP(h)
- Threat
- PXB(i)=Q
- Vars
- Q(e);N_GUARD,P_SPINQ(e),P_SPINS(b),XP(F)::QAR(A)
- B(i);OGATE,P_SPINB(i),XP(F)::R1(I)
- S(b);P_SPINQ(e),XB(C)::PXB(i)=Q
- Q(e);P_SPINS(b)::PXB(i)=Q
- Q(e);P_PINS(E),P_SPINS(b)::PXB(i)=Q
- R(a);::PXB(i)=Q
- R(c);::PXB(i)=Q
- S(b);P_SPINQ(e)::PXB(i)=Q
- P(f);::PXB(i)=Q
- Refutation
- S(b);P_SPINQ(e),XR(G)
- Try
- Q(A);CHECK
- Vars
- Q(e);N_GUARD,P_PINS(E),P_SPINQ(e),P_SPINS(b)::QAR1(A),XQ(e)
- S(b);P_SPINQ(e),XQ(A)::PXB(i)=Q
- Refutation
- Q(e);P_SPINQ(e),P_SPINS(b)
- Try
- Actual
- Q(A);XP(h)
- Threat
- PXB(i)=Q
- Vars
- Q(e);N_GUARD,P_SPINQ(e),P_SPINS(b),XP(F)::QAR(A)
- R(c);XR(G)::PXB(i)=Q
- B(i);OGATE,P_SPINB(i),XP(F)::R1(I)
- S(b);P_SPINQ(e),XB(C)::PXB(i)=Q
- S(b);P_SPINQ(e),XQ(A)::PXB(i)=Q
- Q(e);P_SPINS(b)::PXB(i)=Q
- Q(e);P_PINS(E),P_SPINS(b)::PXB(i)=Q
- R(a);::PXB(i)=Q
- R(c);::PXB(i)=Q
- S(b);P_SPINQ(e)::PXB(i)=Q
- P(f);::PXB(i)=Q
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).