MESON Chess Problem Database
Problem Display
PID: 108763 (BB3n2/5Q1q/4p3/4N3/1P1kr3/1P4p1/2PPR3/2NnK2b w - - 0 1)
Labai, Zoltan
Taraba, Jozef
Variantim, 2002
#2
11 + 8
| 14580 | Chess Compositions (Taraba) | 2009 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Qa7#
- 1...Qg6
- 2.Qa7#
- 1...Qg8
- 2.Qa7#
- 1...Qh2
- 2.Qa7#
- 1...Qh3
- 2.Qa7#
- 1...Qh4
- 2.Qa7#
- 1...Qh5
- 2.Qa7#
- 1...Qh6
- 2.Qa7#
- 1...Qh8
- 2.Qa7#
- 1...Rxe2+
- 2.Sxe2#
- 1...Rf4
- 2.Ba7#
- 1...Rg4
- 2.Ba7#
- 1...Rh4
- 2.Ba7#
- 1...Rxe5
- 2.Bxe5#
- 1...Bf3
- 2.Sxf3#
- 1...Sb2
- 2.c3#
- 1...Sf2
- 2.c3#
- 1...Se3
- 2.c3#
- 1...g2
- 2.Sf3#
- 1...Qf5
- Tries
- 1.Rxe4+?
- 1...Bxe4
- 2.Se2#
- 1...Qxe4+!
- 1...Bxe4
- 1.Qxe6?
- threat
- 2.Sc6#
- 2.Qc4#
- 2.Qd5#
- 2.Qb6#
- 2.Qd6#
- 1...Rxe2+
- 2.Sxe2#
- 1...Rxe5
- 2.Bxe5#
- 2.Qc4#
- 2.Qxe5#
- 1...Qg6
- 2.Sc6#
- 2.Ba7#
- 2.Qc4#
- 2.Qd5#
- 1...Qg8
- 2.Sc6#
- 2.Ba7#
- 2.Qb6#
- 1...Qh6
- 2.Sc6#
- 2.Ba7#
- 2.Qc4#
- 2.Qd5#
- 1...Qa7
- 2.Sc6#
- 2.Bxa7#
- 2.Qc4#
- 2.Qd5#
- 2.Qd6#
- 1...Qb7
- 2.Qc4#
- 1...Qc7
- 2.Qd5#
- 1...Qd7
- 2.Qc4#
- 2.Qb6#
- 1...Qe7
- 2.Sc6#
- 2.Qc4#
- 2.Qd5#
- 1...Qf7
- 2.Sc6#
- 2.Qb6#
- 1...Re3
- 2.Qc4#
- 2.Qb6#
- 1...Rf4
- 2.Qc4#
- 2.Qb6#
- 1...Rg4
- 2.Qc4#
- 2.Qb6#
- 1...Rh4
- 2.Qc4#
- 2.Qb6#
- 1...Sb2
- 2.Sc6#
- 2.Qd5#
- 2.Qb6#
- 2.Qd6#
- 2.c3#
- 1...Sc3
- 2.Sc6#
- 2.Qc4#
- 2.Qb6#
- 1...Se3
- 2.Sc6#
- 2.Qb6#
- 2.c3#
- 1...Sd7
- 2.Sc6#
- 2.Qc4#
- 2.Qd5#
- 2.Qd6#
- 1...Sxe6!
- threat
- 1.Qf6?
- threat
- 2.Sf3#
- 1...Rxe2+
- 2.Sxe2#
- 1...Rxe5
- 2.Bxe5#
- 2.Qxe5#
- 1...Bf3
- 2.Sxf3#
- 1...Qb7!
- threat
- 1.Qc7?
- threat
- 2.Ba7#
- 2.Qb6#
- 2.Qd6#
- 2.Qc4#
- 2.Qc5#
- 1...Rxe2+
- 2.Sxe2#
- 1...Rxe5
- 2.Qxe5#
- 2.Qc4#
- 1...Qd7
- 2.Ba7#
- 2.Qb6#
- 2.Qc4#
- 2.Qc5#
- 1...Qe7
- 2.Qc4#
- 1...Re3
- 2.Ba7#
- 2.Qb6#
- 2.Qc4#
- 2.Qc5#
- 1...Rf4
- 2.Ba7#
- 2.Qb6#
- 2.Qc4#
- 2.Qc5#
- 1...Rg4
- 2.Ba7#
- 2.Qb6#
- 2.Qc4#
- 2.Qc5#
- 1...Rh4
- 2.Ba7#
- 2.Qb6#
- 2.Qc4#
- 2.Qc5#
- 1...Sb2
- 2.Ba7#
- 2.Qb6#
- 2.Qd6#
- 2.Qc3#
- 2.Qc5#
- 2.c3#
- 1...Sc3
- 2.Ba7#
- 2.Qb6#
- 2.Qxc3#
- 2.Qc4#
- 2.Qc5#
- 2.dxc3#
- 1...Se3
- 2.Ba7#
- 2.Qb6#
- 2.Qc3#
- 2.Qc5#
- 2.c3#
- 1...Sd7
- 2.Qd6#
- 2.Qc4#
- 1...Qxc7!
- threat
- 1.Qe7?
- threat
- 2.Qc5#
- 2.Qd6#
- 1...Rxe2+
- 2.Sxe2#
- 1...Rxe5
- 2.Bxe5#
- 1...Re3
- 2.Qc5#
- 1...Rf4
- 2.Ba7#
- 2.Qc5#
- 1...Rg4
- 2.Ba7#
- 2.Qc5#
- 1...Rh4
- 2.Ba7#
- 2.Qc5#
- 1...Sc3
- 2.Qc5#
- 1...Se3
- 2.Qc5#
- 2.c3#
- 1...Sd7
- 2.Qd6#
- 1...Qxe7!
- threat
- 1.Qg7?
- threat
- 2.Sf3#
- 2.Ba7#
- 1...Rxe2+
- 2.Sxe2#
- 1...Rxe5
- 2.Bxe5#
- 2.Ba7#
- 2.Qxe5#
- 1...Bf3
- 2.Sxf3#
- 2.Ba7#
- 1...Sd7
- 2.Sf3#
- 1...Qxg7!
- threat
- 1.Qxh7?
- threat
- 2.Qa7#
- 1...Rxe2+
- 2.Sxe2#
- 1...Rxe5
- 2.Bxe5#
- 2.Qd3#
- 1...Sd7
- 2.Qxd7#
- 1...Sxh7!
- threat
- 1.c4?
- threat
- 2.Sc6#
- 1...Rxe2+
- 2.Sxe2#
- 1...Rxe5
- 2.Bxe5#
- 1...Rf4
- 2.Ba7#
- 1...Rg4
- 2.Ba7#
- 1...Rh4
- 2.Ba7#
- 1...Re3!
- threat
- 1.Rxe4+?
- Keys
- 1.Qf3!
- threat
- 2.Qd3#
- 1...Rxe2+
- 2.Sxe2#
- 1...Rxe5
- 2.Bxe5#
- 1...Bxf3
- 2.Sxf3#
- 1...Qc7
- 2.Rxe4#
- 1...Re3
- 2.Sc6#
- 1...Rf4
- 2.Sc6#
- 1...Rg4
- 2.Sc6#
- 1...Rh4
- 2.Sc6#
- 1...Sb2
- 2.Qc3#
- 2.c3#
- 1...Sf2
- 2.Qc3#
- 2.c3#
- 1...Se3
- 2.c3#
- threat
- 1.Qf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(g);N_GUARD::QAB(I)
- R(e);CHECK,XR(E)::S(A),XR(e)
- R(e);N_PINR(E)::B(K)
- R(e);OGATE,XS(H)::B(K),XR(e)
- B(b);N_GUARD::S(H),XB(b)
- S(a);N_GUARD::P(C)
- S(a);N_GUARD,N_PINR(E)::P(C)
- P(c);S_CUTB(b)::S(H)
- Tries
- Try
- R(E);CHECK,N_SPINR(E),XR(e)
- Vars
- B(b);XR(E)::S(A)
- Refutation
- Q(g);CHECK,XR(E)
- Try
- Q(I);XP(f)
- Threat
- DUALS(5)
- Vars
- R(e);CHECK,XR(E)::S(A),XR(e)
- Q(g);::QAR1(I)
- Refutation
- S(h);XQ(I)
- Try
- Q(I);
- Threat
- QAB(I)+S(H),DCHECK
- Vars
- R(e);CHECK,XR(E)::S(A),XR(e)
- B(b);::QAB(I)+S(H),DCHECK,XB(b)
- Refutation
- Q(g);
- Try
- Q(I);
- Threat
- DUALS(5)
- Vars
- R(e);CHECK,XR(E)::S(A),XR(e)
- Q(g);::QAR1(I)
- Refutation
- Q(g);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,XR(E)::S(A),XR(e)
- R(e);OGATE,XS(H)::B(K),XR(e)
- R(e);::QAB1(I)
- S(a);::QAB1(I)
- S(h);::QAR2(I)
- Refutation
- Q(g);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,XR(E)::S(A),XR(e)
- S(h);::QAB(I)+S(H),DCHECK
- Refutation
- Q(g);XQ(I)
- Try
- Q(I);XQ(g)
- Threat
- QAB(I)
- Vars
- R(e);CHECK,XR(E)::S(A),XR(e)
- S(h);N_GUARD::QAR(I),XS(h)
- Refutation
- S(h);XQ(I)
- Try
- P(C);
- Threat
- S(H)
- Vars
- R(e);CHECK,XR(E)::S(A),XR(e)
- R(e);OGATE,XS(H)::B(K),XR(e)
- R(e);N_PINR(E)::B(K)
- Refutation
- R(e);
- Try
- Actual
- Q(I);
- Threat
- QAR1(I)
- Vars
- R(e);CHECK,XR(E)::S(A),XR(e)
- R(e);OGATE,XS(H)::B(K),XR(e)
- B(b);XQ(I)::S(H),XB(b)
- Q(g);N_GUARD::R1(E),XR(e)
- R(e);::S(H)
- R(e);N_PINR(E)::S(H)
- S(a);N_GUARD,N_PINR(E)::P(C)
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).