MESON Chess Problem Database
Problem Display
PID: 15214 (8/1p6/4Kp2/2P1Pr2/2p1k1p1/2PN1Nb1/3Bp3/7Q w - - 0 1)
Vandemeulebroucke, Ignaas
Die Schwalbe, 1981
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Kxd3
- 2.Qb1#
- 1...Rxe5+
- 2.Sfxe5#
- 1...Rg5
- 2.Sfe1#
- 1...Bf2
- 2.Sxf2#
- 1...Bh2
- 2.Sf2#
- 1...Bf4
- 2.Sf2#
- 2.Sfe1#
- 1...Bxe5
- 2.Sf2#
- 1...cxd3
- 2.Sg5#
- 1...Kxd3
- Tries
- 1.Sb2?
- threat
- 2.Sg5#
- 1...Rxe5+
- 2.Sxe5#
- 1...gxf3
- 2.Qb1#
- 1...Rg5
- 2.Se1#
- 2.Sg1#
- 2.Sh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sxg5#
- 1...Rxf3!
- threat
- 1.Sb4?
- threat
- 2.Sg5#
- 1...Rxe5+
- 2.Sxe5#
- 1...gxf3
- 2.Qb1#
- 1...Rg5
- 2.Se1#
- 2.Sg1#
- 2.Sh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sxg5#
- 1...Rxf3!
- threat
- 1.Sf4?
- threat
- 2.Se1#
- 2.Sg1#
- 2.Sh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sg5#
- 1...Rxe5+
- 2.Sxe5#
- 1...Bxf4
- 2.Se1#
- 1...gxf3
- 2.Qb1#
- 1...e1Q
- 2.Sxe1#
- 2.Sg1#
- 2.Sg5#
- 1...e1S
- 2.Sxe1#
- 2.Sg5#
- 1...e1B
- 2.Sxe1#
- 2.Sg1#
- 2.Sh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sg5#
- 1...e1R
- 2.Sxe1#
- 2.Sg1#
- 2.Sg5#
- 1...Rg5
- 2.Se1#
- 2.Sg1#
- 2.Sh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sxg5#
- 1...Rh5
- 2.Sh2#
- 2.Sh4#
- 2.Sg5#
- 1...Be1
- 2.Sxe1#
- 2.Sg1#
- 2.Sh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sg5#
- 1...Bh2
- 2.Se1#
- 2.Sg1#
- 2.Sxh2#
- 2.Sd4#
- 2.Sh4#
- 2.Sg5#
- 1...Bh4
- 2.Se1#
- 2.Sg1#
- 2.Sh2#
- 2.Sd4#
- 2.Sxh4#
- 2.Sg5#
- 1...Rxf4!
- threat
- 1.Qh7?
- threat
- 2.Qxf5#
- 1...Kxd3
- 2.Qxf5#
- 1...Kxf3
- 2.Qh1#
- 2.Qxb7#
- 1...Bf4!
- threat
- 1.c6?
- threat
- 2.Sc5#
- 1...Rxe5+
- 2.Sfxe5#
- 1...Kxd3
- 2.Qb1#
- 1...cxd3
- 2.Sg5#
- 1...Bf2
- 2.Sxf2#
- 1...b6!
- threat
- 1.Sb2?
- Keys
- 1.Qb1!
- threat
- 2.Sde1#
- 1...Rxe5+
- 2.Sdxe5#
- 1...Kxf3
- 2.Qh1#
- 2.Qxb7#
- 1...Rxf3
- 2.Sf2#
- 1...cxd3
- 2.Qxb7#
- 1...e1Q
- 2.Sdxe1#
- 1...e1S
- 2.Sdxe1#
- 1...e1B
- 2.Sdxe1#
- 1...e1R
- 2.Sdxe1#
- 1...Be1
- 2.Sdxe1#
- threat
- 1.Qb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 5
- Sets
- K(d);OGATEB,S_FLIGHT,XS(D)::QAB(A)
- R(f);CHECK,XP(G)::QAB(A)+S(E),XR(f)
- R(f);N_GUARD::QAB(A)+S(E)
- B(b);N_GUARD::S(D),XB(b)
- B(b);N_GUARD::S(D)
- B(b);N_GUARD,XP(G)::S(D)
- P(c);SBLOCK,XS(D)::QAB(A)+S(E),DCHECK
- Tries
- Try
- S(D);
- Threat
- QAB(A)+S(E),DCHECK
- Vars
- R(f);CHECK,XP(G)::QAB(A)+S(E),XR(f)
- P(e);P_SPINP(e),SBLOCK,XS(E)::QAB(A)
- Refutation
- R(f);P_SPINR(f),XS(E)
- Try
- S(D);
- Threat
- QAB(A)+S(E),DCHECK
- Vars
- R(f);CHECK,XP(G)::QAB(A)+S(E),XR(f)
- P(e);P_SPINP(e),SBLOCK,XS(E)::QAB(A)
- Refutation
- R(f);P_SPINR(f),XS(E)
- Try
- S(D);
- Threat
- DUALS(6)
- Vars
- R(f);CHECK,XP(G)::QAB(A)+S(E),XR(f)
- B(b);XS(D)::QAB(A)+S(E)
- P(e);P_SPINP(e),SBLOCK,XS(E)::QAB(A)
- Refutation
- R(f);XS(D)
- Try
- Q(A);P_PINR(f)
- Threat
- QAB1(A),XR(f)
- Vars
- K(d);S_FLIGHT,XS(D)::QAB(A),XR(f)
- Refutation
- B(b);
- Try
- P(F);
- Threat
- S(D)
- Vars
- R(f);CHECK,XP(G)::QAB(A)+S(E),XR(f)
- K(d);OGATEB,S_FLIGHT,XS(D)::QAB(A)
- P(c);SBLOCK,XS(D)::QAB(A)+S(E),DCHECK
- B(b);N_GUARD::S(D),XB(b)
- Refutation
- P(h);
- Try
- Actual
- Q(A);
- Threat
- QAB(A)+S(D)
- Vars
- R(f);CHECK,XP(G)::QAB(A)+S(D),XR(f)
- R(f);SBLOCK,XS(E)::QAB(A)+S(D),DCHECK
- P(c);P_SPINP(c),SBLOCK,XS(D)::QAB(A),XP(h)
- P(a);::QAB(A)+S(D),XQ(a)
- P(a);::QAB(A)+S(D),XS(a)
- P(a);::QAB(A)+S(D),XB(a)
- P(a);::QAB(A)+S(D),XR(a)
- B(b);::QAB(A)+S(D),XB(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).