MESON Chess Problem Database
Problem Display
PID: 12196 (4r3/q1p1n1p1/3pR2b/3pN3/1PP1N1PP/3PkP2/1B2b1BQ/3RK3 w - - 0 1)
Haring, Jacobus
Die Schwalbe, 1976
#2
14 + 10
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Bc1#
- 1...Bxd3
- 2.Rxd3#
- 1...Bf4
- 2.Qg1#
- 1...dxc4
- 2.Sxc4#
- 1...d4
- 2.Bc1#
- 1...Qd4
- Tries
- 1.Sg3?
- threat
- 2.Sg6#
- 1...Kf4
- 2.Sf1#
- 2.Sf5#
- 1...Bxd1
- 2.Sf1#
- 1...Bxd3
- 2.Sxd3#
- 1...Bxf3
- 2.Sf1#
- 1...Qd4
- 2.Bc1#
- 1...Bf4
- 2.Qg1#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Sg6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...g6
- 2.Sxg6#
- 1...dxe5!
- threat
- 1.Sxd6?
- threat
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sef7#
- 1...Bxd3
- 2.Sxd3#
- 2.Rxd3#
- 1...Bxf3
- 2.Sxf3#
- 1...Sf5
- 2.Sxf5#
- 1...Qd4
- 2.Bc1#
- 1...Bf4
- 2.Qg1#
- 1...Sc6
- 2.Sf5#
- 1...Sg6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c6
- 2.Sxc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sef7#
- 1...g6
- 2.Sc6#
- 2.Sxg6#
- 2.Sd7#
- 2.Sef7#
- 1...Bxd1!
- threat
- 1.Sf6?
- threat
- 2.Sc6#
- 2.Sg6#
- 2.Sed7#
- 2.Sf7#
- 1...Bxd3
- 2.Sxd3#
- 2.Rxd3#
- 1...Bxf3
- 2.Sxf3#
- 1...dxe5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sf5
- 2.Sxd5#
- 1...Qd4
- 2.Bc1#
- 1...Bf4
- 2.Qg1#
- 1...Sc6
- 2.Sxd5#
- 1...Sg6
- 2.Sxd5#
- 1...Sc8
- 2.Sxd5#
- 1...Sg8
- 2.Sxd5#
- 1...c6
- 2.Sxc6#
- 2.Sg6#
- 2.Sed7#
- 2.Sf7#
- 1...g6
- 2.Sc6#
- 2.Sxg6#
- 2.Sed7#
- 2.Sf7#
- 1...Bxd1!
- threat
- 1.Sc6?
- threat
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Bc1#
- 1...Bxd1
- 2.Sf2#
- 2.Sc5#
- 1...Bxd3
- 2.Bc1#
- 1...Bxf3
- 2.Bc1#
- 1...dxe4
- 2.Bc1#
- 2.Rxe4#
- 1...Sf5
- 2.Bc1#
- 1...Qd4
- 2.Bc1#
- 2.Bxd4#
- 1...Qc5
- 2.Sf2#
- 2.Sc3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Bc1#
- 1...Qa1
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 1...Qa2
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Bd4#
- 1...Qa3
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Bd4#
- 1...Bf4
- 2.Bc1#
- 2.Qg1#
- 1...Bg5
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sxg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Bc1#
- 1...Sg6
- 2.Bc1#
- 1...Sc8
- 2.Bc1#
- 1...Sg8
- 2.Bc1#
- 1...g5
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sxg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Bc1#
- 1...Sxc6!
- threat
- 1.Sg6?
- threat
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Qg1#
- 1...Bxd1
- 2.Sf2#
- 2.Sc5#
- 1...Bxd3
- 2.Qg1#
- 1...Bxf3
- 2.Qg1#
- 1...dxe4
- 2.Rxe4#
- 2.Qg1#
- 1...Sf5
- 2.Qg1#
- 1...Qd4
- 2.Bc1#
- 2.Qg1#
- 1...Qc5
- 2.Sf2#
- 2.Sg3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Qg1#
- 1...Bf4
- 2.Qg1#
- 2.Qxf4#
- 1...Bg5
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sxg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Qg1#
- 1...Sc6
- 2.Qg1#
- 1...Sc8
- 2.Qg1#
- 1...Sg8
- 2.Qg1#
- 1...c5
- 2.Sf2#
- 2.Sg3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 2.Qg1#
- 1...Sxg6!
- threat
- 1.Sg3?
- Keys
- 1.Sc3!
- threat
- 2.Sc6#
- 1...Kd4
- 2.Sxd5#
- 1...Bxd1
- 2.Sxd1#
- 1...Bxd3
- 2.Rxd3#
- 1...Bxf3
- 2.Sxf3#
- 1...dxe5
- 2.Qxe5#
- 1...Qd4
- 2.Bc1#
- 1...Bf4
- 2.Qg1#
- 1...Sf5
- 2.Sxd5#
- 1...Sc6
- 2.Sxd5#
- 1...Sg6
- 2.Sxd5#
- 1...Sc8
- 2.Sxd5#
- 1...Sg8
- 2.Sxd5#
- 1...c6
- 2.Sxc6#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 2
- Sets
- Q(f);SBLOCK::B(C)
- B(a);OGATE,XP(F)::R1(A),XB(a)
- B(e);SBLOCK::QAB(E)
- P(c);XP(I)::S(M),XP(c)
- P(c);SBLOCK::B(C)
- Tries
- Try
- S(J);
- Threat
- R(N)+S(M)
- Vars
- B(a);N_GUARD,XR(A)::S(J)
- B(a);XP(F)::R(N)+S(M),XB(a)
- B(a);N_GUARD,XP(G)::S(J)
- Q(f);SBLOCK::B(C)
- B(e);SBLOCK::QAB(E)
- S(h);N_GUARD::S(J),XS(h)
- S(h);N_GUARD::S(J)
- P(i);::R(N)+S(M),XP(i)
- Refutation
- P(d);P_SPINP(d),XS(M)
- Try
- S(J);XP(d)
- Threat
- DUALS(4)
- Vars
- B(a);XP(G)::R(N)+S(M),XB(a)
- S(h);N_GUARD::S(J),XS(h)
- Q(f);SBLOCK::B(C)
- B(e);SBLOCK::QAB(E)
- S(h);N_GUARD::S(J)
- Refutation
- B(a);XR(A)
- Try
- S(J);
- Threat
- DUALS(4)
- Vars
- B(a);XP(G)::R(N)+S(M),XB(a)
- S(h);N_GUARD::S(J),XP(c)
- Q(f);SBLOCK::B(C)
- B(e);SBLOCK::QAB(E)
- Refutation
- B(a);XR(A)
- Try
- S(M);
- Threat
- DUALS(7)
- Vars
- B(a);XP(F)::B(C)
- B(a);XP(G)::B(C)
- S(h);::B(C)
- Refutation
- S(h);XS(M)
- Try
- S(M);
- Threat
- DUALS(7)
- Vars
- B(a);XP(F)::QAB(E)
- B(a);XP(G)::QAB(E)
- S(h);::QAB(E)
- Refutation
- S(h);XS(M)
- Try
- Actual
- S(J);
- Threat
- R(N)+S(M)
- Vars
- K(b);S_FLIGHT::B(C)+S(J),XP(c)
- B(a);XR(A)::S(J),XB(a)
- B(a);OGATE,XP(F)::R1(A),XB(a)
- B(a);XP(G)::R(N)+S(M),XB(a)
- P(d);OGATE,P_SPINP(d),XS(M)::QAR2(E),XP(d)
- Q(f);SBLOCK::B(C)
- B(e);SBLOCK::QAB(E)
- S(h);N_GUARD::S(J),XP(c)
- P(g);::R(N)+S(M),XP(g)
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).