MESON Chess Problem Database
Problem Display
PID: 91860 (4Nn2/3p1ppn/3pP3/R3pk1B/2Q1p3/4KN1P/8/8 w - - 0 1)
Deichelbohrer, Horst
Schach-Echo, 1978
#2
8 + 9
| 6490 | yacpdb | 2009 |
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Sg5
- 2.Sd4#
- 2.Sh4#
- 1...Sf6
- 2.Sxd6#
- 2.Sxg7#
- 1...Sxe6
- 2.Qxe4#
- 1...Sg6
- 2.Bg4#
- 1...exf3
- 2.Qg4#
- 1...dxe6
- 2.Qxe4#
- 1...fxe6
- 2.Qxe4#
- 1...f6
- 2.Sxd6#
- 2.Sxg7#
- 1...g5
- 2.Sd4#
- 1...g6
- 2.Bg4#
- 1...Sg5
- Tries
- 1.Bxf7?
- threat
- 2.Qxe4#
- 1...exf3
- 2.Qf4#
- 2.Qg4#
- 1...Sg5
- 2.Sd4#
- 2.Sh4#
- 1...Sf6
- 2.Sxd6#
- 2.Sxg7#
- 1...d5!
- threat
- 1.Rb5?
- 1...Sxe6
- 2.Qxe4#
- 1...exf3
- 2.Qg4#
- 1...dxe6
- 2.Qxe4#
- 1...fxe6
- 2.Qxe4#
- 1...g5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 2.Sh4#
- 1...Sf6
- 2.Sxd6#
- 2.Sxg7#
- 1...Sg6
- 2.Bg4#
- 1...f6
- 2.Sxd6#
- 2.Sxg7#
- 1...g6
- 2.Bg4#
- 1...d5!
- 1...Sxe6
- 1.Qd5?
- 1...Sxe6
- 2.Qxe4#
- 1...dxe6
- 2.Qxe4#
- 1...fxe6
- 2.Qxe4#
- 1...g5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 2.Sh4#
- 1...Sf6
- 2.Sxd6#
- 2.Sxg7#
- 1...Sg6
- 2.Bg4#
- 1...f6
- 2.Sxd6#
- 2.Sxg7#
- 1...g6
- 2.Bg4#
- 1...exf3!
- 1...Sxe6
- 1.h4?
- threat
- 2.Sd4#
- 1...Sxe6
- 2.Qxe4#
- 1...exf3
- 2.Qg4#
- 1...d5!
- threat
- 1.exf7?
- 1...exf3
- 2.Qg4#
- 1...g5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 2.Sh4#
- 1...Sf6
- 2.Sxd6#
- 2.Sxg7#
- 1...Se6
- 2.Qxe4#
- 1...Sg6
- 2.Bg4#
- 1...g6
- 2.Bg4#
- 1...d5!
- 1...exf3
- 1.e7?
- 1...exf3
- 2.Qg4#
- 1...g5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 2.Sh4#
- 1...Sf6
- 2.Sxd6#
- 2.Sxg7#
- 1...Se6
- 2.Qxe4#
- 1...Sg6
- 2.Bg4#
- 1...f6
- 2.Sxd6#
- 2.Sxg7#
- 1...g6
- 2.Bg4#
- 1...d5!
- 1...exf3
- 1.Bxf7?
- Keys
- 1.Rd5!
- 1...Kxe6
- 2.Rxe5#
- 1...Sxe6
- 2.Qxe4#
- 1...exf3
- 2.Qg4#
- 1...dxe6
- 2.Qxe4#
- 1...fxe6
- 2.Qxe4#
- 1...g5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sf6
- 2.Sxg7#
- 1...Sg6
- 2.Bg4#
- 1...f6
- 2.Sxg7#
- 1...g6
- 2.Bg4#
- 1...Kxe6
- 1.Rd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(i);SBLOCK,XP(G)::QAB1(D),XP(a)
- S(i);SBLOCK::B(F)
- P(a);OGATE,XS(B)::QAB1(D)
- P(e);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(f);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(g);SBLOCK::S(B)
- P(g);SBLOCK::B(F)
- Tries
- Try
- B(F);XP(f)
- Threat
- QAB1(D),XP(a)
- Refutation
- P(d);N_SPINP(b)
- Try
- R(E);
- Vars
- S(i);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(a);OGATE,XS(B)::QAB1(D)
- P(e);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(f);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(g);SBLOCK::S(B)
- S(i);SBLOCK::B(F)
- P(g);SBLOCK::B(F)
- Refutation
- P(d);N_SPINP(b)
- Try
- Q(D);
- Vars
- S(i);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(e);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(f);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(g);SBLOCK::S(B)
- S(i);SBLOCK::B(F)
- P(g);SBLOCK::B(F)
- Refutation
- P(a);XS(B)
- Try
- P(C);
- Threat
- S(B)
- Vars
- S(i);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(a);OGATE,XS(B)::QAB1(D)
- Refutation
- P(d);N_SPINP(b)
- Try
- P(G);XP(f)
- Vars
- P(a);OGATE,XS(B)::QAB1(D)
- P(g);SBLOCK::S(B)
- S(i);SBLOCK::QAB1(D),XP(a)
- S(i);SBLOCK::B(F)
- P(g);SBLOCK::B(F)
- Refutation
- P(d);N_SPINP(b)
- Try
- P(G);
- Vars
- P(a);OGATE,XS(B)::QAB1(D)
- P(g);SBLOCK::S(B)
- S(i);SBLOCK::QAB1(D),XP(a)
- S(i);SBLOCK::B(F)
- P(g);SBLOCK::B(F)
- Refutation
- P(d);N_SPINP(b)
- Try
- Actual
- R(E);
- Vars
- K(c);N_SPINP(b),S_FLIGHT,XP(G)::QAB(D)+R(E),DCHECK,XP(b)
- S(i);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(a);OGATE,XS(B)::QAB1(D)
- P(e);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(f);SBLOCK,XP(G)::QAB1(D),XP(a)
- P(g);SBLOCK::S(B)
- S(h);SBLOCK::S(B)
- S(h);SBLOCK::S(H),XP(g)
- S(i);SBLOCK::B(F)
- P(f);SBLOCK::S(H),XP(g)
- P(g);SBLOCK::B(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).