MESON Chess Problem Database
Problem Display
PID: 77179 (q2BNK2/5P2/BRP1k3/nrp1Npp1/2P4b/6QR/6n1/8 w - - 0 1)
Mira-Kraft, Edwin
1st Prize, Schach, 1999
#2
11 + 9
| 23 | Die Schwalbe | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qxc6
- 2.Bc8#
- 1...Qc8
- 2.Bxc8#
- 1...Qxc6
- Tries
- 1.Sf3?
- threat
- 2.Sc7#
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qxc6
- 2.Bc8#
- 1...Qxd8
- 2.Qe5#
- 1...Bxg3
- 2.Rh6#
- 1...Sxc4
- 2.Sc7#
- 1...Sxc6
- 2.Qd6#
- 1...f4
- 2.Qg4#
- 1...Qb7
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qa7
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qb8
- 2.Sg7#
- 1...Qc8
- 2.Sg7#
- 2.Bxc8#
- 2.Qe5#
- 2.Qd6#
- 1...Sb7
- 2.Sc7#
- 2.Sg7#
- 2.Qe5#
- 1...Sf4!
- threat
- 1.Sg4?
- threat
- 2.Sc7#
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qxc6
- 2.Bc8#
- 1...Qxd8
- 2.Qe5#
- 1...Bxg3
- 2.Rh6#
- 1...Sxc4
- 2.Sc7#
- 1...Sxc6
- 2.Qd6#
- 1...fxg4
- 2.Sg7#
- 1...Qb7
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qa7
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qb8
- 2.Sg7#
- 1...Qc8
- 2.Sg7#
- 2.Bxc8#
- 2.Qe5#
- 2.Qd6#
- 1...Sf4
- 2.Qe3#
- 1...Sb7
- 2.Sc7#
- 2.Sg7#
- 2.Qe5#
- 1...f4!
- threat
- 1.Sg6?
- threat
- 2.Sc7#
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qxc6
- 2.Bc8#
- 1...Qxd8
- 2.Qe5#
- 1...Sxc4
- 2.Sc7#
- 1...Sxc6
- 2.Qd6#
- 1...f4
- 2.Qg4#
- 1...Qb7
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qa7
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qb8
- 2.Sg7#
- 1...Qc8
- 2.Sg7#
- 2.Bxc8#
- 2.Qe5#
- 2.Qd6#
- 1...Sf4
- 2.Qe3#
- 1...Sb7
- 2.Sc7#
- 2.Sg7#
- 2.Qe5#
- 1...Bxg3!
- threat
- 1.Sd7?
- threat
- 2.Sc7#
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qxd8
- 2.Qe5#
- 2.Qd6#
- 1...Bxg3
- 2.Rh6#
- 1...Sxc4
- 2.Sc7#
- 1...Sxc6
- 2.Qd6#
- 1...f4
- 2.Qg4#
- 1...Qb7
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qa7
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qb8
- 2.Sg7#
- 1...Qc8
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Sf4
- 2.Qe3#
- 1...Sb7
- 2.Sc7#
- 2.Sg7#
- 2.Qe5#
- 1...Qxc6!
- threat
- 1.Sf3?
- Keys
- 1.Sd3!
- threat
- 2.Sc7#
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qxc6
- 2.Bc8#
- 1...Qxd8
- 2.Qe5#
- 1...Bxg3
- 2.Rh6#
- 1...Sxc4
- 2.Sc7#
- 1...Sxc6
- 2.Qd6#
- 1...f4
- 2.Qg4#
- 1...Qb7
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qa7
- 2.Sg7#
- 2.Qe5#
- 2.Qd6#
- 1...Qb8
- 2.Sg7#
- 1...Qc8
- 2.Sg7#
- 2.Bxc8#
- 2.Qe5#
- 2.Qd6#
- 1...Sf4
- 2.Qe3#
- 1...Sb7
- 2.Sc7#
- 2.Sg7#
- 2.Qe5#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- Q(i);N_GUARD,P_SPINQ(i),XP(G)::B(E)
- Q(i);N_GUARD::B(E),XQ(i)
- Tries
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(i);N_GUARD,P_SPINQ(i),XP(G)::B(E)
- Q(i);P_PINS(J),XB(I)::QAR1(A)
- B(b);OGATE,XQ(A)::R(B)
- S(c);XP(C)::S(J)
- S(c);P_SPINS(c),XP(G)::QAR1(A)
- P(f);OGATEB::QAB(A)
- Q(i);::S(J)
- Refutation
- S(a);
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(i);N_GUARD,P_SPINQ(i),XP(G)::B(E)
- Q(i);P_PINS(J),XB(I)::QAR1(A)
- B(b);OGATE,XQ(A)::R(B)
- S(c);XP(C)::S(J)
- S(c);P_SPINS(c),XP(G)::QAR1(A)
- P(f);XS(D)::S(J)
- Q(i);::S(J)
- S(a);N_GUARD::QAR(A)
- Refutation
- P(f);
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(i);N_GUARD,P_SPINQ(i),XP(G)::B(E)
- Q(i);P_PINS(J),XB(I)::QAR1(A)
- S(c);XP(C)::S(J)
- S(c);P_SPINS(c),XP(G)::QAR1(A)
- P(f);OGATEB::QAB(A)
- Q(i);::S(J)
- S(a);N_GUARD::QAR(A)
- Refutation
- B(b);XQ(A)
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- B(b);OGATE,XQ(A)::R(B)
- S(c);XP(C)::S(J)
- S(c);P_SPINS(c),XP(G)::QAR1(A)
- P(f);OGATEB::QAB(A)
- Q(i);::S(J)
- S(a);N_GUARD::QAR(A)
- Refutation
- Q(i);P_SPINQ(i),XP(G)
- Try
- Actual
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(i);N_GUARD,P_SPINQ(i),XP(G)::B(E)
- Q(i);P_PINS(J),XB(I)::QAR1(A)
- B(b);OGATE,XQ(A)::R(B)
- S(c);XP(C)::S(J)
- S(c);P_SPINS(c),XP(G)::QAR1(A)
- P(f);OGATEB::QAB(A)
- Q(i);::S(J)
- S(a);N_GUARD::QAR(A)
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).