MESON Chess Problem Database
Problem Display
PID: 70805 (8/1P4pp/2BpN3/1P2kPQP/K2Rbr1r/1pP1n1n1/6NB/4R3 w - - 0 1)
Buchwald, Julius
The Chess Problem, 1946
#2
13 + 10
SOLUTION
- SOUND
- Sets
- 1...Sd1
- 2.Rd5#
- 1...Sef1
- 2.Rd5#
- 1...Sc2
- 2.Rd5#
- 1...Sxg2
- 2.Rd5#
- 1...Sc4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sgf1
- 2.Rxe4#
- 1...Sh1
- 2.Rxe4#
- 1...Se2
- 2.Rxe4#
- 1...Sxf5
- 2.Rxe4#
- 1...Sxh5
- 2.Rxe4#
- 1...d5
- 2.b8Q#
- 2.b8B#
- 1...Sd1
- Tries
- 1.Sxe3?
- threat
- 2.Sc4#
- 2.Qxg7#
- 1...Bxf5
- 2.Sc4#
- 2.Sg4#
- 1...Sxf5
- 2.Rxe4#
- 1...Sxh5
- 2.Sc4#
- 2.Rxe4#
- 1...d5
- 2.b8Q#
- 2.b8B#
- 1...Rfg4
- 2.Sc4#
- 1...Rhg4
- 2.Sc4#
- 1...g6
- 2.Sc4#
- 1...Rxf5!
- threat
- 1.Sd8?
- threat
- 2.Sf7#
- 1...Rxf5
- 2.Qe7#
- 1...Bxf5
- 2.Qxg7#
- 1...Sexf5
- 2.Rd5#
- 1...Sgxf5
- 2.Rxe4#
- 1...Bd5!
- threat
- 1.Sf8?
- threat
- 2.Sd7#
- 1...Rxf5
- 2.Qe7#
- 1...Bxf5
- 2.Qxg7#
- 1...Sexf5
- 2.Rd5#
- 1...Sgxf5
- 2.Rxe4#
- 1...d5
- 2.b8Q#
- 2.b8B#
- 1...Bxc6!
- threat
- 1.Rxe3?
- threat
- 2.Rd5#
- 1...Sxf5
- 2.Rexe4#
- 2.Rdxe4#
- 1...d5
- 2.Rxd5#
- 2.b8Q#
- 2.b8B#
- 1...Rxf5!
- threat
- 1.b8Q?
- threat
- 2.Qxd6#
- 1...Sc4
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Bd5!
- threat
- 1.Sxe3?
- Keys
- 1.Sc5!
- threat
- 2.Sd7#
- 1...Rxf5
- 2.Qe7#
- 1...Bxf5
- 2.Qxg7#
- 1...Bxc6
- 2.Sd3#
- 1...Sexf5
- 2.Rd5#
- 1...Sgxf5
- 2.Rxe4#
- 1...dxc5
- 2.b8Q#
- 2.b8B#
- 1...d5
- 2.b8Q#
- 2.b8B#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 11
- Sets
- S(b);N_GUARD,P_SPINB(d)::R1(F)
- S(b);N_GUARD,P_SPINB(d),XS(B)::R1(F)
- S(b);N_GUARD,P_SPINB(d)::R1(F),XS(b)
- S(c);N_GUARD,P_SPINR(e)::R1(F),XB(d)
- S(c);N_GUARD,P_SPINR(e),P_SPINS(c),XP(H)::R1(F),XB(d)
- S(c);N_GUARD,P_SPINR(e),XP(J)::R1(F),XB(d)
- P(h);::P=Q
- Tries
- Try
- S(B);XS(b)
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD,P_SPINR(e),P_SPINS(c),XP(H)::R1(F),XB(d)
- P(h);::P=Q
- R(e);P_SPINS(c)::S(B)
- R(f);::S(B)
- P(i);::S(B)
- Refutation
- R(e);P_SPINR(e),P_SPINS(c),XP(H)
- Try
- S(L);
- Threat
- S(L)
- Vars
- R(e);P_SPINR(e),P_SPINS(c),SBLOCK,XP(H)::QAR2(I)
- B(d);P_PINR(F),P_SPINB(d),P_SPINS(b),SBLOCK,XP(H)::QAB(I),XP(i)
- S(b);N_GUARD,P_SPINB(d),P_SPINS(b),XP(H)::R1(F)
- S(c);N_GUARD,P_SPINR(e),P_SPINS(c),XP(H)::R1(F),XB(d)
- Refutation
- B(d);P_PINR(F),P_SPINS(b)
- Try
- S(L);
- Threat
- S(L)
- Vars
- R(e);P_SPINR(e),P_SPINS(c),SBLOCK,XP(H)::QAR2(I)
- B(d);P_PINR(F),P_SPINB(d),P_SPINS(b),SBLOCK,XP(H)::QAB(I),XP(i)
- S(b);N_GUARD,P_SPINB(d),P_SPINS(b),XP(H)::R1(F)
- S(c);N_GUARD,P_SPINR(e),P_SPINS(c),XP(H)::R1(F),XB(d)
- P(h);::P=Q
- Refutation
- B(d);P_PINP(G),P_PINR(F),P_SPINS(b),XB(K)
- Try
- R(A);P_PINB(d),XS(b)
- Threat
- R1(F)
- Refutation
- R(e);P_SPINR(e),P_SPINS(c),XP(H)
- Try
- P(M);P_PINP(h)
- Threat
- QAB1(M),XP(h)
- Vars
- S(b);N_GUARD,P_SPINB(d)::R1(F)
- S(b);N_GUARD,P_SPINB(d)::R1(F),XS(b)
- Refutation
- B(d);P_PINR(F),P_SPINS(b)
- Try
- Actual
- S(L);
- Threat
- S(L)
- Vars
- R(e);P_SPINR(e),P_SPINS(c),SBLOCK,XP(H)::QAR2(I)
- B(d);P_PINR(F),P_SPINB(d),P_SPINS(b),SBLOCK,XP(H)::QAB(I),XP(i)
- B(d);N_GUARD,P_PINP(G),P_PINR(F),P_SPINS(b),XB(K)::S(L)
- S(b);N_GUARD,P_SPINB(d),P_SPINS(b),XP(H)::R1(F)
- S(c);N_GUARD,P_SPINR(e),P_SPINS(c),XP(H)::R1(F),XB(d)
- P(h);XS(L)::P=Q
- P(h);::P=Q
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).