MESON Chess Problem Database
Problem Display
PID: 67321 (2bNN2r/K4R1P/pB1pP3/1R1nk1p1/p3p3/3p1p2/1bP1Q1P1/r7 w - - 0 1)
Maleika, Gerhard
Phenix, 2000
#2
11 + 13
SOLUTION
- SOUND
- Sets
- 1...Bxe6
- 2.Sc6#
- 1...e3
- 2.Qxe3#
- 1...Bxe6
- Tries
- 1.Sc7?
- threat
- 2.Sc6#
- 2.Rxd5#
- 1...Rxd8
- 2.Rxd5#
- 1...Bxe6
- 2.Sc6#
- 1...axb5
- 2.Sc6#
- 1...e3
- 2.Qxe3#
- 1...Bd7
- 2.Rxd5#
- 1...Bb7!
- threat
- 1.Qxf3?
- threat
- 2.Rf5#
- 2.Qg3#
- 2.Qf5#
- 2.Qf6#
- 1...Rxh7
- 2.Qg3#
- 2.Qf5#
- 2.Qf6#
- 1...Bxe6
- 2.Sc6#
- 2.Qg3#
- 2.Qf6#
- 1...axb5
- 2.Rf5#
- 2.Qf5#
- 1...Rf1
- 2.Rf5#
- 1...Rf8
- 2.Qg3#
- 2.Qf5#
- 2.Qf6#
- 1...Bc1
- 2.Rf5#
- 2.Qf5#
- 2.Qf6#
- 1...e3
- 2.Rxd5#
- 2.Rf5#
- 2.Qxd5#
- 2.Qxe3#
- 2.Qf5#
- 1...exf3!
- threat
- 1.Qd2?
- threat
- 2.Qxg5#
- 1...Bxe6
- 2.Sc6#
- 1...e3
- 2.Qxe3#
- 1...Bc1
- 2.Qc3#
- 1...g4
- 2.Qf4#
- 2.Qg5#
- 1...Rg8!
- threat
- 1.Qf2?
- threat
- 2.Qg3#
- 1...e3
- 2.Qxe3#
- 1...Bc1
- 2.Bd4#
- 2.Qd4#
- 1...axb5!
- threat
- 1.Qe3?
- threat
- 2.Qxg5#
- 1...Bxe6
- 2.Sc6#
- 1...Bc1
- 2.Bd4#
- 2.Qd4#
- 1...g4
- 2.Qf4#
- 2.Qg5#
- 1...Rg8!
- threat
- 1.cxd3?
- threat
- 2.Qxb2#
- 2.Qxe4#
- 1...axb5
- 2.Qxe4#
- 1...Rb1
- 2.Qxe4#
- 1...Rc1
- 2.Qxe4#
- 1...Re1
- 2.Qxb2#
- 1...Ra2
- 2.Qxe4#
- 1...Ra3
- 2.Qxe4#
- 1...Bc1
- 2.Qxe4#
- 2.d4#
- 1...Ba3
- 2.Qxe4#
- 2.d4#
- 1...Bc3
- 2.Qxe4#
- 1...Bd4
- 2.Qxe4#
- 1...a3
- 2.Qxe4#
- 1...e3
- 2.Qxb2#
- 2.Qxe3#
- 1...fxe2!
- threat
- 1.c3?
- threat
- 2.Bd4#
- 1...e3
- 2.Qxe3#
- 1...Bxc3!
- threat
- 1.c4?
- threat
- 2.Rxd5#
- 2.Qxb2#
- 1...Bxe6
- 2.Sc6#
- 2.Qxb2#
- 1...dxe2
- 2.Rxd5#
- 1...fxe2
- 2.Rxd5#
- 1...e3
- 2.Qxe3#
- 1...Rb1
- 2.Rxd5#
- 1...Rc1
- 2.Rxd5#
- 1...Ra2
- 2.Rxd5#
- 1...Ra3
- 2.Rxd5#
- 1...Bc1
- 2.Rxd5#
- 1...Ba3
- 2.Rxd5#
- 1...Bc3
- 2.Rxd5#
- 1...Bd4
- 2.Rxd5#
- 1...Bb7
- 2.Qxb2#
- 1...d2
- 2.Rxd5#
- 1...a3
- 2.Rxd5#
- 1...axb5!
- threat
- 1.gxf3?
- threat
- 2.Qh2#
- 2.Qxe4#
- 1...Rxh7
- 2.Qxe4#
- 1...axb5
- 2.Qxe4#
- 1...Re1
- 2.Qh2#
- 1...Rg1
- 2.Qxe4#
- 1...Rh1
- 2.Qxe4#
- 1...Bc1
- 2.Qxe4#
- 1...e3
- 2.Qh2#
- 2.Qxe3#
- 1...g4
- 2.Qxe4#
- 2.f4#
- 1...dxe2!
- threat
- 1.g4?
- threat
- 2.Rf5#
- 2.Qh2#
- 1...Bxe6
- 2.Sc6#
- 2.Qh2#
- 1...dxe2
- 2.Rf5#
- 1...fxe2
- 2.Rf5#
- 1...axb5
- 2.Rf5#
- 1...e3
- 2.Qxe3#
- 1...Rg1
- 2.Rf5#
- 1...Rh1
- 2.Rf5#
- 1...Rf8
- 2.Qh2#
- 1...Bc1
- 2.Rf5#
- 1...f2
- 2.Rf5#
- 1...Rxh7!
- threat
- 1.Sc7?
- Keys
- 1.Sg7!
- threat
- 2.Sc6#
- 2.Rf5#
- 1...Rxd8
- 2.Rf5#
- 1...Bxe6
- 2.Sc6#
- 1...e3
- 2.Qxe3#
- 1...Rf8
- 2.Sc6#
- 1...Bb7
- 2.Rf5#
- 1...Bd7
- 2.Rf5#
- threat
- 1.Sg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(l);SBLOCK,XP(F)::S(J)
- P(f);OGATEB::QAR2(B),XP(f)
- Tries
- Try
- S(K);
- Threat
- DUALS(2)
- Vars
- R(m);XS(J)::R1(D),XS(g)
- B(l);XP(F)::S(J)
- P(j);N_SPINS(g),XR(D)::S(J)
- P(f);OGATEB::QAR2(B),XP(f)
- B(l);::R1(D),XS(g)
- Refutation
- B(l);
- Try
- Q(B);N_PINP(f),XP(d)
- Threat
- DUALS(4)
- Vars
- R(a);::R1(H)
- Refutation
- P(f);XQ(B)
- Try
- Q(B);N_PINP(f)
- Threat
- QAR2(B),XP(i)
- Vars
- B(l);SBLOCK,XP(F)::S(J)
- P(f);OGATEB::QAR2(B),XP(f)
- B(b);N_GUARD::QAB(B)
- Refutation
- R(m);
- Try
- Q(B);N_PINP(f)
- Threat
- QAB(B)
- Vars
- P(f);OGATEB::QAR2(B),XP(f)
- Refutation
- P(j);N_SPINS(g),XR(D)
- Try
- Q(B);
- Threat
- QAR2(B),XP(i)
- Vars
- B(l);SBLOCK,XP(F)::S(J)
- Refutation
- R(m);
- Try
- P(A);XP(c)
- Threat
- DUALS(2)
- Vars
- P(j);N_SPINS(g),XR(D)::QAR1(B),XP(f)
- R(a);::QAR1(B),XP(f)
- R(a);::QAB(B),XB(b)
- B(b);::QAR1(B),XP(f)
- B(b);P_PINB(E)::QAR1(B),XP(f)
- P(e);::QAR1(B),XP(f)
- Refutation
- P(d);N_SPINP(f),XQ(B)
- Try
- P(A);
- Threat
- B(E)
- Vars
- P(f);OGATEB::QAR2(B),XP(f)
- Refutation
- B(b);XP(A)
- Try
- P(A);
- Threat
- DUALS(2)
- Vars
- P(c);N_SPINP(f),XQ(B)::R1(D),XS(g)
- P(d);N_SPINP(f),XQ(B)::R1(D),XS(g)
- P(f);OGATEB::QAR2(B),XP(f)
- R(a);::R1(D),XS(g)
- B(b);::R1(D),XS(g)
- B(b);P_PINB(E)::R1(D),XS(g)
- B(l);::QAB(B),XB(b)
- P(c);::R1(D),XS(g)
- P(e);::R1(D),XS(g)
- Refutation
- P(j);N_SPINS(g),XR(D)
- Try
- P(C);XP(d)
- Threat
- DUALS(2)
- Vars
- R(m);P_PINR(H),XP(I)::QAR1(B),XP(f)
- P(j);N_SPINS(g),XR(D)::QAR1(B),XP(f)
- R(a);::QAB(B)
- R(a);::QAR1(B),XP(f)
- B(b);::QAR1(B),XP(f)
- Refutation
- P(c);N_SPINP(f),XQ(B)
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- P(c);N_SPINP(f),XQ(B)::R1(H)
- P(d);N_SPINP(f),XQ(B)::R1(H)
- P(j);N_SPINS(g),XR(D)::R1(H)
- P(f);OGATEB::QAR2(B),XP(f)
- R(a);::R1(H)
- R(m);::QAB(B)
- B(b);::R1(H)
- P(d);::R1(H)
- Refutation
- R(m);P_PINR(H),XP(I)
- Try
- Actual
- S(K);
- Threat
- DUALS(2)
- Vars
- R(m);XS(J)::R1(H)
- B(l);XP(F)::S(J)
- P(f);OGATEB::QAR2(B),XP(f)
- R(m);::S(J)
- B(l);::R1(H)
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).