MESON Chess Problem Database
Problem Display
PID: 174115 (1n1BN3/NR1rbn1q/8/3Pk1p1/3pP1R1/2B1p3/3PKP2/7Q w - - 0 1)
Gross, Erwin
Boletim da UBP, 1986
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxe4
- 2.Qxe4#
- 1...Qg6
- 2.Qh2#
- 1...Qg8
- 2.Qh2#
- 1...Qh2
- 2.Qxh2#
- 1...Qg7
- 2.Qh2#
- 1...Rxd5
- 2.Rxe7#
- 1...Rxd8
- 2.Rxe7#
- 1...Ba3
- 2.Bf6#
- 1...Bb4
- 2.Bf6#
- 1...Bc5
- 2.Bf6#
- 1...Bd6
- 2.Bf6#
- 1...Bf6
- 2.Bxf6#
- 1...Bf8
- 2.Bf6#
- 1...Sh6
- 2.Qh2#
- 1...Sa6
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Qxe4
- Tries
- 1.Kd3?
- threat
- 2.Bxd4#
- 1...Qxe4+
- 2.Qxe4#
- 1...Rxd5
- 2.Rxe7#
- 1...Bc5
- 2.Bf6#
- 1...Sc6
- 2.Sxc6#
- 1...dxc3!
- threat
- 1.Sb5?
- threat
- 2.Bxd4#
- 1...Qxe4
- 2.Qxe4#
- 1...Rxd5
- 2.Rxe7#
- 1...dxc3
- 2.d4#
- 1...Bc5
- 2.Bf6#
- 1...Sc6!
- threat
- 1.Bb6?
- threat
- 2.Bcxd4#
- 2.Bbxd4#
- 1...Qxe4
- 2.Qxe4#
- 1...Rxd5
- 2.Rxe7#
- 1...dxc3
- 2.d4#
- 1...Sc6
- 2.Sxc6#
- 1...Bc5!
- threat
- 1.Rb4?
- threat
- 2.Bxd4#
- 1...Qxe4
- 2.Qxe4#
- 1...Bxb4
- 2.Bf6#
- 1...dxc3
- 2.d4#
- 1...Bc5
- 2.Bf6#
- 1...Sc6
- 2.Sxc6#
- 1...Rxd5!
- threat
- 1.Qf3?
- threat
- 2.Qg3#
- 1...Qxe4
- 2.Qxe4#
- 1...Rxd5
- 2.Rxe7#
- 1...Qf5
- 2.Qxf5#
- 1...Qh2
- 2.Qf5#
- 1...Qh3
- 2.Qf5#
- 1...Qh4
- 2.Qf5#
- 1...dxc3!
- threat
- 1.Qa1?
- threat
- 2.Bxd4#
- 1...Rxd5
- 2.Rxe7#
- 1...dxc3
- 2.Qxc3#
- 1...Bc5
- 2.Bf6#
- 1...Sc6
- 2.Sxc6#
- 1...Qxe4!
- threat
- 1.dxe3?
- threat
- 2.Bxd4#
- 2.exd4#
- 1...Qxe4
- 2.Qxe4#
- 1...Rxd5
- 2.Rxe7#
- 1...Bc5
- 2.Bf6#
- 1...Sc6
- 2.Sxc6#
- 1...dxc3!
- threat
- 1.Kd3?
- Keys
- 1.fxe3!
- threat
- 2.Bxd4#
- 2.exd4#
- 1...Qh2+
- 2.Qxh2#
- 1...Qxe4
- 2.Qxe4#
- 1...Rxd5
- 2.Rxe7#
- 1...dxc3
- 2.d4#
- 1...Bc5
- 2.Bf6#
- 1...Sc6
- 2.Sxc6#
- threat
- 1.fxe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- Q(h);OGATE,XP(F)::QAR1(A),XQ(h)
- Q(h);N_GUARD::QAB(A)
- Q(h);N_GUARD,P_PINP(D)::QAB(A),XQ(h)
- R(e);OGATE,XP(H)::R(J),XB(f)
- R(e);OGATE,XB(K)::R(J),XB(f)
- B(f);OGATE::B(K)
- B(f);OGATE::B(K),XB(f)
- S(g);S_CUTQ(h)::QAB(A)
- S(i);N_GUARD::S(I)
- S(i);N_GUARD::S(I),XS(i)
- Tries
- Try
- K(C);P_SPINP(F),S_FLIGHT
- Threat
- B(E),XP(b)
- Vars
- Q(h);CHECK,OGATE,XP(F)::QAR1(A),XQ(h)
- R(e);OGATE,XP(H)::R(J),XB(f)
- B(f);OGATE::B(K)
- S(i);N_GUARD::S(I),XS(i)
- Refutation
- P(b);N_SPINP(b),XB(E)
- Try
- S(I);
- Threat
- B(E),XP(b)
- Vars
- Q(h);OGATE,XP(F)::QAR1(A),XQ(h)
- R(e);OGATE,XP(H)::R(J),XB(f)
- P(b);N_SPINP(b),OGATE,XB(E)::P(B)
- B(f);OGATE::B(K)
- Refutation
- S(i);
- Try
- B(K);
- Threat
- DUALS(2)
- Vars
- Q(h);OGATE,XP(F)::QAR1(A),XQ(h)
- R(e);OGATE,XP(H)::R(J),XB(f)
- P(b);N_SPINP(b),OGATE,XB(E)::P(B)
- S(i);N_GUARD::S(I),XS(i)
- Refutation
- B(f);
- Try
- R(J);
- Threat
- B(E),XP(b)
- Vars
- Q(h);OGATE,XP(F)::QAR1(A),XQ(h)
- B(f);OGATE,XR(J)::B(K)
- P(b);N_SPINP(b),OGATE,XB(E)::P(B)
- B(f);OGATE::B(K)
- S(i);N_GUARD::S(I),XS(i)
- Refutation
- R(e);XP(H)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- Q(h);OGATE,XP(F)::QAR1(A),XQ(h)
- R(e);OGATE,XP(H)::R(J),XB(f)
- Q(h);N_GUARD::QAR1(A),XQ(h)
- Q(h);N_GUARD,P_PINP(D)::QAR1(A)
- Q(h);N_GUARD::QAR1(A)
- Refutation
- P(b);N_SPINP(b),XB(E)
- Try
- Q(A);
- Threat
- B(E),XP(b)
- Vars
- R(e);OGATE,XP(H)::R(J),XB(f)
- P(b);OGATE,XB(E)::QAB(A),XP(b)
- B(f);OGATE::B(K)
- S(i);N_GUARD::S(I),XS(i)
- Refutation
- Q(h);XP(F)
- Try
- P(B);XP(a)
- Threat
- DUALS(2)
- Vars
- Q(h);OGATE,P_PINP(B),XP(F)::QAR1(A),XQ(h)
- R(e);OGATE,XP(H)::R(J),XB(f)
- B(f);OGATE::B(K)
- S(i);N_GUARD::S(I),XS(i)
- Refutation
- P(b);N_SPINP(b),XB(E)
- Try
- Actual
- P(D);XP(a)
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,N_GUARD::QAB(A),XQ(h)
- Q(h);OGATE,P_PINP(D),XP(F)::QAR1(A),XQ(h)
- R(e);OGATE,XP(H)::R(J),XB(f)
- P(b);N_SPINP(b),OGATE,XB(E)::P(B)
- B(f);OGATE::B(K)
- S(i);N_GUARD::S(I),XS(i)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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