MESON Chess Problem Database
Problem Display
PID: 2817 (4N3/3p4/Bpp1P1bR/1r1k1p2/nP2RP2/2p5/K1PPN3/7Q w - - 0 1)
af Geyersstam, Fredrik
Source?, 0000
#2
12 + 9
| 3645 | 96 Schackproblem | 1908 |
| 785 | Het Belgisch Schaakbord (L'Echiquier Belge) | 2006 |
| 5503 | ISC | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Rxb4
- 2.Re5#
- 1...Ra5
- 2.Bc4#
- 2.Re3#
- 2.Re5#
- 1...Rc5
- 2.Re3#
- 2.Re5#
- 1...Bh5
- 2.Rd4#
- 1...Bf7
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Bxe8
- 2.Rd4#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...cxd2
- 2.c4#
- 1...c5
- 2.Bb7#
- 1...dxe6
- 2.Rd4#
- 1...d6
- 2.Sf6#
- 2.Sc7#
- 1...Rxb4
- Tries
- 1.Ka1?
- 1...Rxb4
- 2.Re5#
- 1...Bxe8
- 2.Rd4#
- 1...cxd2
- 2.c4#
- 1...dxe6
- 2.Rd4#
- 1...c5
- 2.Bb7#
- 1...Ra5
- 2.Bc4#
- 2.Re3#
- 2.Re5#
- 1...Rc5
- 2.Re3#
- 2.Re5#
- 1...Bh5
- 2.Rd4#
- 1...Bf7
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...d6
- 2.Sf6#
- 2.Sc7#
- 1...fxe4!
- 1...Rxb4
- 1.Ka3?
- 1...Rxb4
- 2.Re5#
- 1...Bxe8
- 2.Rd4#
- 1...cxd2
- 2.c4#
- 1...dxe6
- 2.Rd4#
- 1...c5
- 2.Bb7#
- 1...Ra5
- 2.Bc4#
- 2.Re3#
- 2.Re5#
- 1...Rc5
- 2.Re3#
- 2.Re5#
- 1...Bh5
- 2.Rd4#
- 1...Bf7
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...d6
- 2.Sf6#
- 2.Sc7#
- 1...fxe4!
- 1...Rxb4
- 1.Rh3?
- threat
- 2.Rd3#
- 1...Rxb4
- 2.Re5#
- 1...c5
- 2.Bb7#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...fxe4!
- threat
- 1.Rxg6?
- threat
- 2.Rd4#
- 1...Rxb4
- 2.Rc4#
- 2.Re5#
- 1...fxe4!
- threat
- 1.Qg2?
- 1...Rxb4
- 2.Re5#
- 1...Bxe8
- 2.Rd4#
- 1...cxd2
- 2.c4#
- 1...dxe6
- 2.Rd4#
- 1...c5
- 2.Bb7#
- 1...Ra5
- 2.Bc4#
- 2.Re3#
- 2.Re5#
- 1...Rc5
- 2.Re3#
- 2.Re5#
- 1...Bh5
- 2.Rd4#
- 1...Bf7
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...d6
- 2.Sf6#
- 2.Sc7#
- 1...fxe4!
- 1...Rxb4
- 1.Qf3?
- threat
- 2.Qd3#
- 1...Rxb4
- 2.Re5#
- 1...c5
- 2.Bb7#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...fxe4!
- threat
- 1.Qa1?
- 1...Kxe4
- 2.Qh1#
- 1...Rxb4
- 2.Re5#
- 1...Bxe8
- 2.Rd4#
- 1...cxd2
- 2.Qd4#
- 2.Qe5#
- 1...dxe6
- 2.Rd4#
- 1...c5
- 2.Bb7#
- 1...Ra5
- 2.Re5#
- 1...Rc5
- 2.Re5#
- 1...Bh5
- 2.Rd4#
- 1...Bf7
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...d6
- 2.Sf6#
- 1...fxe4!
- 1...Kxe4
- 1.Qg1?
- threat
- 2.Qd4#
- 1...Kxe4
- 2.Qh1#
- 2.Qg2#
- 1...Rxb4
- 2.Re5#
- 1...c5
- 2.Bb7#
- 1...fxe4!
- threat
- 1.Qh3?
- threat
- 2.Qd3#
- 1...Kxe4
- 2.Sf6#
- 2.Qg2#
- 2.Qh1#
- 2.Qd3#
- 1...Rxb4
- 2.Re5#
- 1...c5
- 2.Bb7#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...fxe4!
- threat
- 1.Qh5?
- 1...Kxe4
- 2.Sf6#
- 2.Qh1#
- 1...Rxb4
- 2.Re5#
- 1...Bxh5
- 2.Rd4#
- 1...Bxe8
- 2.Rd4#
- 1...dxe6
- 2.Rd4#
- 1...c5
- 2.Bb7#
- 1...Ra5
- 2.Re5#
- 1...Rc5
- 2.Re5#
- 1...Bf7
- 2.Rd4#
- 2.Qxf5#
- 1...Bh7
- 2.Rd4#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...d6
- 2.Sf6#
- 1...cxd2!
- 1...Kxe4
- 1.d3?
- threat
- 2.Re3#
- 2.Re5#
- 1...Rxb4
- 2.Re5#
- 1...Bxe8
- 2.Rd4#
- 1...Bh5
- 2.Rd4#
- 2.Re5#
- 1...Sc5
- 2.Sxc3#
- 2.Re5#
- 1...fxe4!
- threat
- 1.exd7?
- threat
- 2.d8Q#
- 2.d8R#
- 1...Rxb4
- 2.Re5#
- 1...Bxe8
- 2.Rd4#
- 1...cxd2
- 2.c4#
- 2.d8Q#
- 2.d8R#
- 1...c5
- 2.Bb7#
- 1...Ra5
- 2.Bc4#
- 2.Re3#
- 2.Re5#
- 2.Re7#
- 2.d8Q#
- 2.d8R#
- 1...Rc5
- 2.Re3#
- 2.Re5#
- 2.Re7#
- 2.d8Q#
- 2.d8R#
- 1...Bh5
- 2.Sc7#
- 2.Rd4#
- 2.Rd6#
- 2.d8Q#
- 2.d8R#
- 1...Bf7
- 2.Sc7#
- 2.Rd4#
- 2.Rd6#
- 2.d8Q#
- 2.d8R#
- 1...Bh7
- 2.Sc7#
- 2.Rd4#
- 2.Rd6#
- 2.d8Q#
- 2.d8R#
- 1...Sb2
- 2.Sxc3#
- 2.d8Q#
- 2.d8R#
- 1...Sc5
- 2.Sxc3#
- 1...fxe4!
- threat
- 1.e7?
- 1...Rxb4
- 2.Re5#
- 1...Bxe8
- 2.Rd4#
- 1...cxd2
- 2.c4#
- 1...c5
- 2.Bb7#
- 1...Ra5
- 2.Bc4#
- 2.Re3#
- 2.Re5#
- 1...Rc5
- 2.Re3#
- 2.Re5#
- 1...Bh5
- 2.Sc7#
- 2.Rd4#
- 2.Rd6#
- 1...Bf7
- 2.Sc7#
- 2.Rd4#
- 2.Rd6#
- 1...Bh7
- 2.Sc7#
- 2.Rd4#
- 2.Rd6#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...d6
- 2.Sf6#
- 2.Sc7#
- 1...fxe4!
- 1...Rxb4
- 1.Ka1?
- Keys
- 1.Qb1!
- 1...Kxe4
- 2.Qh1#
- 1...Rxb4
- 2.Re5#
- 1...Bxe8
- 2.Rd4#
- 1...cxd2
- 2.c4#
- 1...fxe4
- 2.Qb3#
- 1...dxe6
- 2.Rd4#
- 1...c5
- 2.Bb7#
- 1...Ra5
- 2.Re5#
- 1...Rc5
- 2.Re5#
- 1...Bh5
- 2.Rd4#
- 1...Bf7
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sb2
- 2.Sxc3#
- 1...Sc5
- 2.Sxc3#
- 1...d6
- 2.Sf6#
- 1...Kxe4
- 1.Qb1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(c);XP(F)::QAB(A)+R(G),DCHECK
- B(h);::QAB(A)+R(G),DCHECK
- B(h);XS(L)::QAB(A)+R(G),DCHECK
- S(b);N_GUARD::S(E),XP(a)
- P(a);OGATE,XP(D)::P(C)
- P(g);OGATEB::B(I)
- P(i);SBLOCK,XP(J)::QAB(A)+R(G),DCHECK
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- R(c);XP(F)::QAB(A)+R(G),DCHECK
- B(h);XS(L)::QAB(A)+R(G),DCHECK
- P(a);OGATE,XP(D)::P(C)
- P(i);SBLOCK,XP(J)::QAB(A)+R(G),DCHECK
- P(g);OGATEB::B(I)
- B(h);::QAB(A)+R(G),DCHECK
- S(b);N_GUARD::S(E),XP(a)
- Refutation
- P(e);P_SPINP(e),XR(G)
- Try
- K(B);P-FLIGHT
- Vars
- R(c);XP(F)::QAB(A)+R(G),DCHECK
- B(h);XS(L)::QAB(A)+R(G),DCHECK
- P(a);OGATE,XP(D)::P(C)
- P(i);SBLOCK,XP(J)::QAB(A)+R(G),DCHECK
- P(g);OGATEB::B(I)
- B(h);::QAB(A)+R(G),DCHECK
- S(b);N_GUARD::S(E),XP(a)
- Refutation
- P(e);P_SPINP(e),XR(G)
- Try
- R(K);
- Threat
- R(K)
- Vars
- R(c);XP(F)::QAB(A)+R(G),DCHECK
- P(g);OGATEB::B(I)
- S(b);N_GUARD::S(E),XP(a)
- Refutation
- P(e);P_SPINP(e),XR(G)
- Try
- R(K);XB(h)
- Threat
- QAB(A)+R(G),DCHECK
- Refutation
- P(e);P_SPINP(e),XR(G)
- Try
- Q(A);
- Vars
- R(c);XP(F)::QAB(A)+R(G),DCHECK
- B(h);XS(L)::QAB(A)+R(G),DCHECK
- P(a);OGATE,XP(D)::P(C)
- P(i);SBLOCK,XP(J)::QAB(A)+R(G),DCHECK
- P(g);OGATEB::B(I)
- B(h);::QAB(A)+R(G),DCHECK
- S(b);N_GUARD::S(E),XP(a)
- Refutation
- P(e);P_SPINP(e),XR(G)
- Try
- Q(A);
- Threat
- QAR2(A)
- Vars
- R(c);XP(F)::QAB(A)+R(G),DCHECK
- P(g);OGATEB::B(I)
- S(b);N_GUARD::S(E),XP(a)
- Refutation
- P(e);P_SPINP(e),XR(G)
- Try
- Q(A);
- Vars
- K(d);OGATEB,S_FLIGHT,XR(G)::QAB(A)
- R(c);XP(F)::R1(G)
- B(h);XS(L)::R1(G)
- P(i);SBLOCK,XP(J)::R1(G)
- P(g);OGATEB::B(I)
- R(c);::R1(G)
- B(h);::R1(G)
- S(b);N_GUARD::S(E),XP(a)
- P(i);SBLOCK::S(L)
- Refutation
- P(e);XR(G)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- R(c);XP(F)::R1(G)
- P(g);OGATEB::B(I)
- Refutation
- P(e);XR(G)
- Try
- Q(A);
- Threat
- QAR2(A)
- Vars
- R(c);XP(F)::R1(G)
- P(g);OGATEB::B(I)
- S(b);N_GUARD::S(E),XP(a)
- Refutation
- P(e);XR(G)
- Try
- Q(A);P_PINP(e)
- Vars
- R(c);XP(F)::R1(G)
- B(h);N_SPINP(e),XQ(A)::R1(G)
- B(h);XS(L)::R1(G)
- P(i);SBLOCK,XP(J)::R1(G)
- P(g);OGATEB::B(I)
- R(c);::R1(G)
- B(h);::R1(G)
- S(b);N_GUARD::S(E),XP(a)
- P(i);SBLOCK::S(L)
- Refutation
- P(a);XP(D)
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- R(c);XP(F)::QAB(A)+R(G),DCHECK
- B(h);XS(L)::QAB(A)+R(G),DCHECK
- Refutation
- P(e);P_SPINP(e),XR(G)
- Try
- P(J);XP(i)
- Threat
- P=Q
- Vars
- R(c);XP(F)::QAB(A)+R(G),DCHECK
- B(h);XS(L)::QAB(A)+R(G),DCHECK
- P(g);OGATEB::B(I)
- S(b);N_GUARD::S(E),XP(a)
- Refutation
- P(e);P_SPINP(e),XR(G)
- Try
- P(J);
- Vars
- R(c);XP(F)::QAB(A)+R(G),DCHECK
- B(h);XS(L)::QAB(A)+R(G),DCHECK
- P(a);OGATE,XP(D)::P(C)
- P(g);OGATEB::B(I)
- S(b);N_GUARD::S(E),XP(a)
- Refutation
- P(e);P_SPINP(e),XR(G)
- Try
- Actual
- Q(A);
- Vars
- K(d);OGATEB,S_FLIGHT,XR(G)::QAB(A)
- R(c);XP(F)::R1(G)
- B(h);XS(L)::R1(G)
- P(a);OGATE,XP(D)::P(C)
- P(e);SBLOCK,XR(G)::QAB(A)
- P(i);SBLOCK,XP(J)::R1(G)
- P(g);OGATEB::B(I)
- R(c);::R1(G)
- B(h);::R1(G)
- S(b);N_GUARD::S(E),XP(a)
- P(i);SBLOCK::S(L)
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).