MESON Chess Problem Database
Problem Display
PID: 272021 (N3B2Q/2P1b3/1BrkPp2/1p4RN/1Kb5/1p1p2p1/1P1P4/4R3 w - - 0 1)
Bakker, Peter Arie
2nd Prize, Schakend Nederland, 1985-1986
#2
12 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Bxc5#
- 1...Rxb6
- 2.c8S#
- 1...Rxc7
- 2.Bxc7#
- 1...Bd8
- 2.cxd8Q#
- 1...Bf8
- 2.Qxf8#
- 1...fxg5
- 2.Qe5#
- 1...f5
- 2.Qe5#
- 1...Rc5
- Tries
- 1.Sf4?
- 1...Rxb6
- 2.c8S#
- 1...Rxc7
- 2.Bxc7#
- 1...Bxe6
- 2.Rxe6#
- 1...fxg5
- 2.Qe5#
- 1...Bd8
- 2.cxd8Q#
- 1...Bf8
- 2.Qxf8#
- 1...Rc5
- 2.Bxc5#
- 1...Bd5
- 2.Rxd5#
- 1...f5
- 2.Qe5#
- 1...g2!
- 1...Rxb6
- 1.Sxf6?
- 1...Rxb6
- 2.c8S#
- 1...Rxc7
- 2.Bxc7#
- 1...Bxe6
- 2.Se4#
- 1...Bd8
- 2.cxd8Q#
- 1...Bf8
- 2.Qxf8#
- 1...Rc5
- 2.Bxc5#
- 1...Bd5
- 2.Rxd5#
- 1...g2
- 2.Qh2#
- 1...Bxf6!
- 1...Rxb6
- 1.Bf2?
- threat
- 2.Bxg3#
- 1...fxg5
- 2.Qe5#
- 1...Bd8
- 2.cxd8Q#
- 1...Bf8
- 2.Qxf8#
- 1...f5
- 2.Qe5#
- 1...Rc5
- 2.Bxc5#
- 1...g2
- 2.Bg3#
- 1...gxf2!
- threat
- 1.Qxf6?
- threat
- 2.Qe5#
- 2.Qf4#
- 1...Rc5
- 2.Bxc5#
- 1...Bd8
- 2.Qxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bf8
- 2.Qd8#
- 2.Qxf8#
- 1...Bxf6!
- threat
- 1.c8Q?
- threat
- 2.Qd7#
- 2.Qxc6#
- 1...Rxb6
- 2.Qd7#
- 2.Qc5#
- 2.Qc7#
- 1...Bxe6
- 2.Rxe6#
- 2.Qxe6#
- 2.Qxc6#
- 1...Bd8
- 2.Qd7#
- 2.Qxd8#
- 1...Bf8
- 2.Qd7#
- 2.Qd8#
- 2.Qxf8#
- 1...Bd5
- 2.Qd7#
- 1...Rc5
- 2.Bxc5#
- 2.Qd7#
- 2.Qxc5#
- 1...Rc7
- 2.Bxc7#
- 2.Qxc7#
- 1...Rxc8!
- threat
- 1.Sf4?
- Keys
- 1.Sxg3!
- 1...Rxb6
- 2.c8S#
- 1...Rxc7
- 2.Bxc7#
- 1...Bxe6
- 2.Se4#
- 1...fxg5
- 2.Qe5#
- 1...Bd8
- 2.cxd8Q#
- 1...Bf8
- 2.Qxf8#
- 1...f5
- 2.Qe5#
- 1...Rc5
- 2.Bxc5#
- 1...Bd5
- 2.Sf5#
- 1...Rxb6
- 1.Sxg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::B(G),XR(f)
- R(f);N_GUARD,XB(G)::P=S
- R(f);OGATE,XP(I)::B(G),XR(f)
- B(i);OGATE::PXB(i)=Q
- B(i);OGATEB::QAB(L),XB(i)
- P(h);OGATE,XR(E)::QAB1(L)
- P(h);OGATE::QAB1(L)
- Tries
- Try
- S(F);
- Vars
- R(f);N_GUARD,XB(G)::P=S
- R(f);OGATE,XP(I)::B(G),XR(f)
- B(d);OGATE,XP(H)::R1(A),XB(d)
- P(h);OGATE,XR(E)::QAB1(L)
- B(i);OGATE::PXB(i)=Q
- B(i);OGATEB::QAB(L),XB(i)
- R(f);N_GUARD::B(G),XR(f)
- B(d);N_GUARD::R1(E),XB(d)
- P(h);OGATE::QAB1(L)
- Refutation
- P(c);
- Try
- S(F);XP(h)
- Vars
- R(f);N_GUARD,XB(G)::P=S
- R(f);OGATE,XP(I)::B(G),XR(f)
- B(d);SBLOCK,XP(H)::S(F)
- B(i);OGATE::PXB(i)=Q
- B(i);OGATEB::QAB(L),XB(i)
- R(f);N_GUARD::B(G),XR(f)
- B(d);N_GUARD::R1(E),XB(d)
- P(c);OGATEB::QAB(L)
- Refutation
- B(i);XS(F)
- Try
- B(G);
- Threat
- B(G),XP(c)
- Vars
- P(h);OGATE,XR(E)::QAB1(L)
- B(i);OGATE::PXB(i)=Q
- B(i);OGATEB::QAB(L),XB(i)
- P(h);OGATE::QAB1(L)
- R(f);N_GUARD::B(G),XR(f)
- P(c);::B(G)
- Refutation
- P(c);XB(G)
- Try
- Q(L);XP(h)
- Threat
- DUALS(2)
- Vars
- R(f);N_GUARD::B(G),XR(f)
- Refutation
- B(i);XQ(L)
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- B(d);::QAR1(I)
- Refutation
- R(f);XQ(I)
- Try
- Actual
- S(F);XP(c)
- Vars
- R(f);N_GUARD,XB(G)::P=S
- R(f);OGATE,XP(I)::B(G),XR(f)
- B(d);SBLOCK,XP(H)::S(F)
- P(h);OGATE,XR(E)::QAB1(L)
- B(i);OGATE::PXB(i)=Q
- B(i);OGATEB::QAB(L),XB(i)
- P(h);OGATE::QAB1(L)
- R(f);N_GUARD::B(G),XR(f)
- B(d);SBLOCK::S(F)
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).