MESON Chess Problem Database
Problem Display
PID: 140751 (4N3/2p3pB/1Pn2Rp1/3pP3/4kP1n/2QpPrPK/4RPP1/7N w - - 0 1)
Sanderse, Jacobus Theodorus
Probleemblad, 1976
#2
14 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxf2
- 2.Sxf2#
- 1...Rxe3
- 2.Rxe3#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf4
- 2.Rxf4#
- 1...Sxg2
- 2.Bxg6#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sxe5
- 2.Qd4#
- 2.Qxe5#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...dxe2
- 2.Qc2#
- 1...d2
- 2.Qc2#
- 1...d4
- 2.Qxc6#
- 1...cxb6
- 2.Sd6#
- 1...Rxf2
- Tries
- 1.Kxh4?
- threat
- 2.Bxg6#
- 1...Rxf4+
- 2.Rxf4#
- 1...Rxg3
- 2.Sxg3#
- 1...Sxe5
- 2.Qd4#
- 2.Qxe5#
- 1...d4
- 2.Qxc6#
- 1...Sd4
- 2.Qxd4#
- 1...Se7
- 2.Qd4#
- 1...gxf6!
- threat
- 1.Bxg6+?
- 1...Sf5
- 2.Bxf5#
- 1...Sxg6!
- 1...Sf5
- 1.Rd2?
- threat
- 2.Qxd3#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf4
- 2.Rxf4#
- 1...Sxe5
- 2.Qd4#
- 2.Qxe5#
- 1...d4
- 2.Qxc6#
- 1...Sb4
- 2.Qd4#
- 1...Rxe3!
- threat
- 1.Rf7?
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf2
- 2.Sxf2#
- 1...Rxe3
- 2.Rxe3#
- 1...Rxf4
- 2.Rxf4#
- 1...Sxg2
- 2.Bxg6#
- 1...Sxe5
- 2.Qd4#
- 2.Qxe5#
- 1...dxe2
- 2.Qc2#
- 1...cxb6
- 2.Sd6#
- 1...d4
- 2.Qxc6#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...d2
- 2.Qc2#
- 1...Sf5!
- 1...Rxg3+
- 1.Rf8?
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf2
- 2.Sxf2#
- 1...Rxe3
- 2.Rxe3#
- 1...Rxf4
- 2.Rxf4#
- 1...Sxg2
- 2.Bxg6#
- 1...Sxe5
- 2.Qd4#
- 2.Qxe5#
- 1...dxe2
- 2.Qc2#
- 1...cxb6
- 2.Sd6#
- 1...d4
- 2.Qxc6#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...d2
- 2.Qc2#
- 1...Sf5!
- 1...Rxg3+
- 1.Qc4+?
- 1...Sd4
- 2.Qxd4#
- 1...d4
- 2.Qxc6#
- 1...dxc4!
- 1...Sd4
- 1.gxf3+?
- 1...Sxf3
- 2.Bxg6#
- 1...Kxf3!
- 1...Sxf3
- 1.bxc7?
- threat
- 2.Sd6#
- 1...Rxg3+
- 2.Sxg3#
- 1...d4
- 2.Qxc6#
- 1...Sf5!
- threat
- 1.Kxh4?
- Keys
- 1.Kg4!
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxf4+
- 2.Rxf4#
- 1...Sxe5+
- 2.Qxe5#
- 1...Rxf2
- 2.Sxf2#
- 1...Rxe3
- 2.Rxe3#
- 1...Sxg2
- 2.Bxg6#
- 1...dxe2
- 2.Qc2#
- 1...cxb6
- 2.Sd6#
- 1...gxf6
- 2.Sxf6#
- 1...d4
- 2.Qxc6#
- 1...Sf5
- 2.gxf3#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...d2
- 2.Qc2#
- 1...Rxg3+
- 1.Kg4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(b);N_PINP(G),XP(C)::S(A),XR(b)
- R(b);OGATE,P_SPINR(b),XP(F)::R1(B),XR(b)
- R(b);CHECK,XP(G)::S(A),XR(b)
- R(b);N_PINP(G),OGATE,XP(I)::R1(L),XR(b)
- S(d);N_GUARD,XP(D)::B(M),XP(g)
- S(f);N_GUARD::QAR1(E)
- S(f);N_GUARD::QAR1(E),XS(f)
- P(a);OGATEB,XR(B)::QAB(E)
- P(a);OGATEB::QAB(E)
- P(e);OGATEB::QAB(E),XS(f)
- P(h);N_GUARD,XP(K)::S(N)
- Tries
- Try
- K(H);N_SPINP(G),P-FLIGHT,XS(d)
- Threat
- B(M),XP(g)
- Vars
- R(b);CHECK,OGATE,XP(I)::R1(L),XR(b)
- R(b);XP(G)::S(A),XR(b)
- P(e);OGATEB::QAB(E),XS(f)
- S(f);N_GUARD::QAR1(E),XS(f)
- S(f);N_GUARD::QAR1(E)
- Refutation
- P(i);XR(L)
- Try
- B(M);CHECK,XP(g)
- Vars
- S(d);N_GUARD,P_SPINS(d)::B(M),XS(d)
- Refutation
- S(d);XB(M)
- Try
- R(B);
- Threat
- QAB1(E),XP(a)
- Vars
- R(b);CHECK,XP(G)::S(A),XR(b)
- R(b);N_PINP(G),OGATE,XP(I)::R1(L),XR(b)
- P(e);OGATEB::QAB(E),XS(f)
- S(f);N_GUARD::QAR1(E)
- Refutation
- R(b);XP(F)
- Try
- R(L);
- Vars
- R(b);CHECK,XP(G)::S(A),XR(b)
- R(b);N_PINP(G),XP(C)::S(A),XR(b)
- R(b);OGATE,P_SPINR(b),XP(F)::R1(B),XR(b)
- R(b);N_PINP(G),OGATE,XP(I)::R1(L),XR(b)
- S(d);N_GUARD,XP(D)::B(M),XP(g)
- P(a);OGATEB,XR(B)::QAB(E)
- P(h);N_GUARD,XP(K)::S(N)
- P(e);OGATEB::QAB(E),XS(f)
- S(f);N_GUARD::QAR1(E)
- S(f);N_GUARD::QAR1(E),XS(f)
- P(a);OGATEB::QAB(E)
- Refutation
- S(d);N_SPINP(g)
- Try
- R(L);
- Vars
- R(b);CHECK,XP(G)::S(A),XR(b)
- R(b);N_PINP(G),XP(C)::S(A),XR(b)
- R(b);OGATE,P_SPINR(b),XP(F)::R1(B),XR(b)
- R(b);N_PINP(G),OGATE,XP(I)::R1(L),XR(b)
- S(d);N_GUARD,XP(D)::B(M),XP(g)
- P(a);OGATEB,XR(B)::QAB(E)
- P(h);N_GUARD,XP(K)::S(N)
- P(e);OGATEB::QAB(E),XS(f)
- S(f);N_GUARD::QAR1(E)
- S(f);N_GUARD::QAR1(E),XS(f)
- P(a);OGATEB::QAB(E)
- Refutation
- S(d);N_SPINP(g)
- Try
- Q(E);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAR1(E),XS(f)
- P(e);N_SPINP(g),OGATEB,P_SPINP(e)::QAB(E),XS(f)
- Refutation
- P(e);XQ(E)
- Try
- P(D);CHECK,N_SPINP(G),XR(b)
- Vars
- S(d);SBLOCK,XP(D)::B(M),XP(g)
- Refutation
- K(c);N_SPINP(g),S_FLIGHT,XP(D)
- Try
- P(K);XP(h)
- Threat
- S(N)
- Vars
- R(b);CHECK,XP(G)::S(A),XR(b)
- P(e);OGATEB::QAB(E),XS(f)
- Refutation
- S(d);N_SPINP(g)
- Try
- Actual
- K(H);N_SPINP(G),S_FLIGHT
- Vars
- R(b);CHECK,XP(G)::S(A),XR(b)
- R(b);CHECK,OGATE,XP(I)::R1(L),XR(b)
- S(f);CHECK,OGATE,XP(J)::QAR1(E),XS(f)
- R(b);XP(C)::S(A),XR(b)
- R(b);OGATE,P_SPINR(b),XP(F)::R1(B),XR(b)
- S(d);N_GUARD,XP(D)::B(M),XP(g)
- P(a);OGATEB,XR(B)::QAB(E)
- P(h);N_GUARD,XP(K)::S(N)
- P(i);XR(L)::S(N),XP(i)
- P(e);OGATEB::QAB(E),XS(f)
- S(d);N_GUARD,N_SPINP(g)::P(D),XR(b)
- S(f);N_GUARD::QAR1(E)
- S(f);N_GUARD::QAR1(E),XS(f)
- P(a);OGATEB::QAB(E)
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).