MESON Chess Problem Database
Problem Display
PID: 140605 (Kb4Nq/P3Q2P/1r2N1B1/4kP2/R1b1P3/1n3P2/r2R4/2B4n w - - 0 1)
Gockel, Hubert
Comm., Die Schwalbe, 2010
#2
13 + 8
| 23 | Die Schwalbe | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Qf6
- 2.Qxf6#
- 1...Qg7
- 2.Qxg7#
- 1...Qxh7
- 2.Qf6#
- 1...Rxe6
- 2.axb8Q#
- 2.axb8B#
- 1...Bf1
- 2.Rd5#
- 2.f4#
- 1...Be2
- 2.Rd5#
- 2.f4#
- 1...Bd3
- 2.f4#
- 1...Bb5
- 2.Rd5#
- 2.f4#
- 1...Bd5+
- 2.Rxd5#
- 1...Ba6
- 2.Rd5#
- 2.f4#
- 1...Bxe6
- 2.Rd5#
- 1...Qf6
- Tries
- 1.Sf4+?
- 1...Re6
- 2.axb8Q#
- 2.axb8B#
- 1...Be6
- 2.Sd3#
- 2.Rd5#
- 1...Kxf4!
- 1...Re6
- 1.Sc5+?
- 1...Re6
- 2.axb8Q#
- 2.axb8B#
- 1...Be6
- 2.Sd3#
- 2.Rd5#
- 1...Kf4!
- 1...Re6
- 1.Sg5+?
- 1...Re6
- 2.axb8Q#
- 2.axb8B#
- 1...Be6
- 2.Rd5#
- 1...Kf4!
- 1...Re6
- 1.Sg7+?
- 1...Re6
- 2.axb8Q#
- 2.axb8B#
- 1...Be6
- 2.Rd5#
- 1...Kf4!
- 1...Re6
- 1.Sd8+?
- 1...Re6
- 2.axb8Q#
- 2.axb8B#
- 1...Be6
- 2.Rd5#
- 1...Kf4!
- 1...Re6
- 1.Sf8+?
- 1...Re6
- 2.axb8Q#
- 2.axb8B#
- 1...Be6
- 2.Rd5#
- 1...Kf4!
- 1...Re6
- 1.Bb2+?
- 1...Sd4
- 2.Bxd4#
- 1...Rxb2!
- 1...Sd4
- 1.Rd4?
- threat
- 2.Bf4#
- 2.f4#
- 1...Bd5+
- 2.Rxd5#
- 1...Bxe6
- 2.Rd5#
- 2.f4#
- 1...Sxc1
- 2.f4#
- 1...Sxd4
- 2.Bf4#
- 1...Rd2
- 2.f4#
- 1...Rf2
- 2.Bf4#
- 1...Sd2
- 2.f4#
- 1...Rxe6!
- threat
- 1.Rxc4?
- threat
- 2.Rd5#
- 2.f4#
- 1...Rxd2
- 2.f4#
- 1...Rxe6
- 2.Rd5#
- 1...Sxd2
- 2.Rc5#
- 2.Qc5#
- 2.f4#
- 1...Ra5
- 2.f4#
- 1...Rb5
- 2.f4#
- 1...Rd6
- 2.f4#
- 1...Sd4
- 2.Rc5#
- 2.Qc5#
- 1...Rxa7+!
- threat
- 1.Qc5+?
- 1...Bd5+
- 2.Rxd5#
- 2.Qxd5#
- 1...Sxc5!
- 1...Bd5+
- 1.Qg5?
- threat
- 2.Qf4#
- 1...Bd5+
- 2.Rxd5#
- 1...Rxe6
- 2.f6#
- 1...Bxe6
- 2.f4#
- 1...Qxg8!
- threat
- 1.axb8Q+?
- 1...Rd6
- 2.Qexd6#
- 2.Qbxd6#
- 1...Rxb8+!
- 1...Rd6
- 1.axb8B+?
- 1...Rd6
- 2.Bxd6#
- 2.Qxd6#
- 1...Rxb8+!
- 1...Rd6
- 1.Sf4+?
- Keys
- 1.f6!
- threat
- 2.f4#
- 1...Bd5+
- 2.Rxd5#
- 1...Qxf6
- 2.Qxf6#
- 1...Rxe6
- 2.axb8Q#
- 2.axb8B#
- 1...Bxe6
- 2.Rd5#
- threat
- 1.f6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- Q(h);N_GUARD::QAB1(J),XQ(h)
- Q(h);N_GUARD::QAB(J),XQ(h)
- Q(h);N_GUARD,XP(K)::QAB1(J)
- R(f);N_GUARD,P_SPINR(f),XS(G)::PXB(g)=Q
- B(d);::P(C)
- B(d);CHECK,N_GUARD::R1(B),XB(d)
- B(d);N_GUARD,P_SPINB(d),XS(G)::R1(B)
- Tries
- Try
- S(G);CHECK
- Vars
- R(f);P_SPINR(f)::PXB(g)=Q
- Refutation
- K(e);S_FLIGHT,XS(G)
- Try
- S(G);CHECK
- Vars
- R(f);P_SPINR(f)::PXB(g)=Q
- Refutation
- K(e);S_FLIGHT
- Try
- S(G);CHECK
- Vars
- R(f);P_SPINR(f)::PXB(g)=Q
- B(d);P_SPINB(d)::R1(B)
- Refutation
- K(e);S_FLIGHT
- Try
- S(G);CHECK
- Vars
- R(f);P_SPINR(f)::PXB(g)=Q
- B(d);P_SPINB(d)::R1(B)
- Refutation
- K(e);S_FLIGHT
- Try
- S(G);CHECK
- Vars
- R(f);P_SPINR(f)::PXB(g)=Q
- B(d);P_SPINB(d)::R1(B)
- Refutation
- K(e);S_FLIGHT
- Try
- S(G);CHECK
- Vars
- R(f);P_SPINR(f)::PXB(g)=Q
- B(d);P_SPINB(d)::R1(B)
- Refutation
- K(e);S_FLIGHT
- Try
- B(A);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::B(A),XS(c)
- Refutation
- R(b);XB(A)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- B(d);CHECK,N_GUARD::R1(B),XB(d)
- S(c);XB(A)::P(C)
- S(c);XR(B)::B(A)
- R(b);::P(C)
- R(b);::B(A)
- S(c);::P(C)
- Refutation
- R(f);P_SPINR(f),XS(G)
- Try
- R(D);P_SPINP(I),XB(d)
- Threat
- DUALS(2)
- Vars
- R(b);N_PINP(I),XR(B)::P(C)
- R(f);P_SPINR(f),XS(G)::R1(B)
- R(b);::P(C)
- R(f);::P(C)
- Refutation
- R(b);CHECK,XP(I)
- Try
- Q(J);CHECK
- Refutation
- S(c);XQ(J)
- Try
- Q(J);
- Threat
- QAB1(J)
- Vars
- B(d);CHECK,N_GUARD::R1(B),XB(d)
- R(f);SBLOCK,XS(G)::QAR(J)+P(F)
- B(d);XS(G)::P(C)
- Refutation
- Q(h);XS(M)
- Try
- P(I);CHECK,P_SPINR(D),XB(g)
- Refutation
- R(f);CHECK,XQ(I)
- Try
- P(I);CHECK,P_SPINR(D),XB(g)
- Refutation
- R(f);CHECK,XB(I)
- Try
- Actual
- P(F);
- Threat
- P(C)
- Vars
- B(d);CHECK,N_GUARD::R1(B),XB(d)
- Q(h);OGATE,XP(F)::QAB1(J),XQ(h)
- R(f);N_GUARD,P_SPINR(f),XS(G)::PXB(g)=Q
- B(d);N_GUARD,P_SPINB(d),XS(G)::R1(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).