MESON Chess Problem Database
Problem Display
PID: 73838 (8/3P1K2/3N1pNp/b1pkP2r/Q1pnp3/8/n7/3Rq2B w - - 0 1)
Barth, Michael
Trommler, Sven
Comm., Freie Presse, 1992
#2
8 + 11
| 6113 | Problemschach-Jahrbuch (1993) | 1994 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Bxe4#
- 1...Qf2
- 2.Bxe4#
- 1...Qc3
- 2.Bxe4#
- 1...Qg3
- 2.Bxe4#
- 1...Qb4
- 2.Bxe4#
- 1...Qxd1
- 2.Bxe4#
- 1...Qf1
- 2.Bxe4#
- 1...Qg1
- 2.Bxe4#
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...Bb6
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Bd8
- 2.Qa8#
- 1...Qd2
- Tries
- 1.Sxc4?
- threat
- 2.Sf4#
- 2.Se7#
- 1...Rxe5
- 2.Sf4#
- 1...fxe5
- 2.Se7#
- 1...Qb4
- 2.Se3#
- 1...Bb4
- 2.Sb6#
- 1...Qd2
- 2.Se7#
- 1...Qf2
- 2.Se7#
- 1...Qg3
- 2.Se7#
- 1...Qh4
- 2.Se3#
- 2.Se7#
- 1...Qf1
- 2.Se3#
- 2.Se7#
- 1...Qe3
- 2.Sxe3#
- 2.Se7#
- 1...Rh4
- 2.Se7#
- 1...Rf5
- 2.Se7#
- 1...Bd2
- 2.Sb6#
- 2.Se7#
- 2.d8Q#
- 2.d8R#
- 1...Bd8
- 2.Sf4#
- 1...Sb4!
- threat
- 1.Sxe4?
- threat
- 2.Sc3#
- 2.Sxf6#
- 1...Qxh1
- 2.Sxf6#
- 1...Rxh1
- 2.Sxf6#
- 1...Rxe5
- 2.Sf4#
- 1...fxe5
- 2.Se7#
- 1...Qc3
- 2.Sxc3#
- 2.Sxf6#
- 1...Bc3
- 2.Sxc3#
- 2.Sxf6#
- 2.Qa8#
- 2.d8Q#
- 2.d8R#
- 1...Sc3
- 2.Sxc3#
- 2.Sxf6#
- 1...c3
- 2.Sxc3#
- 2.Sxf6#
- 1...f5
- 2.Sc3#
- 2.Sf6#
- 1...Qxe4!
- threat
- 1.Sf5?
- threat
- 2.Sfe7#
- 1...fxe5
- 2.Sge7#
- 1...Bd8
- 2.Qa8#
- 1...Rxf5!
- threat
- 1.Rxd4+?
- 1...cxd4
- 2.Qb5#
- 2.Qxc4#
- 1...Kxd4!
- 1...cxd4
- 1.d8Q?
- threat
- 2.Qa8#
- 1...Qxd1
- 2.Bxe4#
- 1...Rxe5
- 2.Sf4#
- 1...Bxd8
- 2.Qa8#
- 1...fxe5
- 2.Se7#
- 1...Qd2
- 2.Bxe4#
- 1...Qb4
- 2.Bxe4#
- 1...Bd2
- 2.Sxc4#
- 2.Sxe4#
- 2.Sf5#
- 2.Sb7#
- 2.Sc8#
- 2.Se8#
- 1...Sb4!
- threat
- 1.d8S?
- threat
- 2.Qc6#
- 2.Qxc4#
- 1...Qxd1
- 2.Bxe4#
- 2.Qxc4#
- 1...Rxe5
- 2.Qc6#
- 1...Bxd8
- 2.Qa8#
- 1...fxe5
- 2.Qc6#
- 1...Qd2
- 2.Bxe4#
- 2.Qxc4#
- 1...Qc3
- 2.Bxe4#
- 2.Qc6#
- 1...Qb4
- 2.Bxe4#
- 2.Qc6#
- 1...Qf1
- 2.Bxe4#
- 2.Qc6#
- 1...Qe2
- 2.Qc6#
- 1...Bd2
- 2.Qxc4#
- 1...Bb4
- 2.Qc6#
- 2.Qa8#
- 1...c3
- 2.Qc6#
- 2.Qc4#
- 1...Sb4!
- threat
- 1.Sxc4?
- Keys
- 1.Sc8!
- threat
- 2.Sce7#
- 1...Rxe5
- 2.Sf4#
- 1...fxe5
- 2.Sge7#
- 1...Bd8
- 2.Qa8#
- threat
- 1.Sc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(a);N_GUARD,N_SPINS(d)::B(B),XP(e)
- Q(a);N_GUARD::B(B),XP(e)
- Q(a);N_GUARD,N_SPINS(d),XR(A)::B(B),XP(e)
- B(f);OGATE::QAB(C)
- Tries
- Try
- S(E);XP(c)
- Threat
- DUALS(2)
- Vars
- R(i);XP(D)::S(F)
- P(j);XP(D)::S(F)
- Q(a);N_GUARD::S(E)
- B(f);N_GUARD::S(E)
- Q(a);N_SPINS(d)::S(F)
- Q(a);::S(F)
- R(i);::S(F)
- B(f);::S(F)
- Refutation
- S(b);
- Try
- S(E);XP(e)
- Threat
- DUALS(2)
- Vars
- Q(a);XB(B)::S(E),XP(j)
- R(i);XB(B)::S(E),XP(j)
- R(i);SBLOCK,XP(D)::S(F)
- P(j);SBLOCK,XP(D)::S(F)
- Refutation
- Q(a);P_SPINQ(a),XS(E)
- Try
- S(E);
- Threat
- S(E)
- Vars
- P(j);SBLOCK,XP(D)::S(F)
- B(f);OGATE::QAB(C)
- Refutation
- R(i);XS(E)
- Try
- R(A);CHECK,XS(d)
- Refutation
- K(h);N_SPINP(e),P-FLIGHT,P_SPINP(c),XR(A)
- Try
- P(G);
- Threat
- QAB(G)
- Vars
- Q(a);N_GUARD,N_SPINS(d),XR(A)::B(B),XP(e)
- R(i);SBLOCK,XP(D)::S(F)
- B(f);OGATE,XQ(G)::QAB(C)
- P(j);SBLOCK,XP(D)::S(F)
- Q(a);N_GUARD,N_SPINS(d)::B(B),XP(e)
- Q(a);N_GUARD::B(B),XP(e)
- Refutation
- S(b);
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- R(i);XP(D)::QAB1(C)
- B(f);OGATE,XS(G)::QAB(C)
- P(j);XP(D)::QAB1(C)
- Q(a);::QAB1(C)
- B(f);N_SPINS(d)::QAB1(C),XP(c)
- Refutation
- S(b);
- Try
- Actual
- S(E);
- Threat
- S(E)
- Vars
- R(i);SBLOCK,XP(D)::S(F)
- P(j);SBLOCK,XP(D)::S(F)
- B(f);OGATE::QAB(C)
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