MESON Chess Problem Database
Problem Display
PID: 56353 (1n1BbR1n/3P1qp1/4Q1p1/6Rp/4Pk2/8/K4P1b/1B2N3 w - - 0 1)
Brogi, Giuseppe
Problemas, 1960
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Qd6#
- 1...Qf6
- 2.Qe5#
- 1...Qxf8
- 2.Qe5#
- 1...h4
- 2.Rg4#
- 1...Qf5
- Tries
- 1.Rg2?
- threat
- 2.Bg5#
- 2.Bc7#
- 1...Qxf8
- 2.Bg5#
- 1...Sxd7
- 2.Bg5#
- 1...Sc6
- 2.Bg5#
- 1...Qf6
- 2.Bc7#
- 2.Qd6#
- 1...Sa6
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Bc7#
- 1...Bg3!
- threat
- 1.Rg3?
- threat
- 2.Sg2#
- 2.Sd3#
- 2.Bg5#
- 2.Bc7#
- 2.Rf3#
- 1...Qxf8
- 2.Sg2#
- 2.Sd3#
- 2.Bg5#
- 2.Rf3#
- 1...Sxd7
- 2.Sg2#
- 2.Sd3#
- 2.Bg5#
- 2.Rf3#
- 1...Sc6
- 2.Sg2#
- 2.Sd3#
- 2.Bg5#
- 2.Rf3#
- 1...Qf5
- 2.Sg2#
- 2.Sd3#
- 2.Bg5#
- 2.Bc7#
- 2.Qd6#
- 1...Qf6
- 2.Sg2#
- 2.Sd3#
- 2.Bc7#
- 2.Qd6#
- 1...Sa6
- 2.Sg2#
- 2.Sd3#
- 2.Bg5#
- 2.Rf3#
- 1...g5
- 2.Sg2#
- 2.Sd3#
- 2.Bxg5#
- 2.Bc7#
- 2.Rf3#
- 1...Bxg3!
- threat
- 1.Ra5?
- threat
- 2.Bg5#
- 2.Bc7#
- 1...Qxf8
- 2.Bg5#
- 1...Sxd7
- 2.Bg5#
- 1...Sc6
- 2.Bg5#
- 1...Qf6
- 2.Bc7#
- 1...Sa6
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Bc7#
- 1...Qf5!
- threat
- 1.Rb5?
- threat
- 2.Bg5#
- 2.Bc7#
- 1...Qxf8
- 2.Bg5#
- 1...Sxd7
- 2.Bg5#
- 1...Sc6
- 2.Bg5#
- 1...Qf6
- 2.Bc7#
- 1...Sa6
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Bc7#
- 1...Qf5!
- threat
- 1.Rc5?
- threat
- 2.Bg5#
- 2.Bc7#
- 1...Qxf8
- 2.Bg5#
- 1...Sxd7
- 2.Bg5#
- 1...Sc6
- 2.Bg5#
- 1...Qf6
- 2.Bc7#
- 1...Sa6
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Bc7#
- 1...Qf5!
- threat
- 1.Rd5?
- threat
- 2.Bg5#
- 2.Bc7#
- 1...Qxf8
- 2.Bg5#
- 1...Sxd7
- 2.Bg5#
- 1...Sc6
- 2.Bg5#
- 1...Qf6
- 2.Bc7#
- 1...Sa6
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Bc7#
- 1...Qf5!
- threat
- 1.Rxh5?
- threat
- 2.Bg5#
- 2.Bc7#
- 2.Rh4#
- 1...Qxf8
- 2.Bg5#
- 2.Rh4#
- 1...Sxd7
- 2.Bg5#
- 2.Rh4#
- 1...Qf5
- 2.Rh4#
- 1...Sc6
- 2.Bg5#
- 2.Rh4#
- 1...Qf6
- 2.Bc7#
- 1...Bg3
- 2.Bg5#
- 2.Bc7#
- 1...Sa6
- 2.Bg5#
- 2.Rh4#
- 1...g5
- 2.Bxg5#
- 2.Bc7#
- 1...gxh5!
- threat
- 1.Rxg6?
- threat
- 2.Bg5#
- 2.Bc7#
- 1...Qxf8
- 2.Bg5#
- 1...Sxd7
- 2.Bg5#
- 1...Sc6
- 2.Bg5#
- 1...Qf5
- 2.Bc7#
- 2.Rxf5#
- 2.Qxf5#
- 2.Qd6#
- 1...Qf6
- 2.Bc7#
- 2.Qd6#
- 1...Sa6
- 2.Bg5#
- 1...Sxg6!
- threat
- 1.Qc4?
- threat
- 2.e5#
- 1...Qf5
- 2.Qc7#
- 1...Qf6
- 2.Qc1#
- 1...Sc6!
- threat
- 1.Rg2?
- Keys
- 1.Qb3!
- threat
- 2.Sg2#
- 1...Qf5
- 2.Qxb8#
- 1...Qf6
- 2.Qe3#
- threat
- 1.Qb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- Q(e);N_PINQ(G)::QAB(G)
- Q(e);N_PINQ(G)::QAB1(G)
- Q(e);N_PINQ(G),N_SPINQ(e),XR(J)::QAB1(G)
- P(c);N_GUARD::R1(F)
- Tries
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- Q(e);N_PINQ(G),N_SPINQ(e),XR(J)::B(I)
- S(g);XP(H)::B(I)
- S(g);::B(I)
- Refutation
- B(a);
- Try
- R(F);
- Threat
- DUALS(5)
- Refutation
- B(a);XR(F)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- Q(e);N_PINQ(G),N_SPINQ(e),XR(J)::B(I)
- S(g);XP(H)::B(I)
- S(g);::B(I)
- Q(e);N_PINQ(G)::B(I)
- Refutation
- Q(e);N_PINQ(G)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- Q(e);N_PINQ(G),N_SPINQ(e),XR(J)::B(I)
- S(g);XP(H)::B(I)
- S(g);::B(I)
- Q(e);N_PINQ(G)::B(I)
- Refutation
- Q(e);N_PINQ(G)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- Q(e);N_PINQ(G),N_SPINQ(e),XR(J)::B(I)
- S(g);XP(H)::B(I)
- S(g);::B(I)
- Q(e);N_PINQ(G)::B(I)
- Refutation
- Q(e);N_PINQ(G)
- Try
- R(F);N_SPINQ(G)
- Threat
- DUALS(2)
- Vars
- Q(e);N_SPINQ(e),XR(J)::B(I)
- S(g);XP(H)::B(I)
- S(g);::B(I)
- Q(e);::B(I)
- Refutation
- Q(e);
- Try
- R(F);XP(c)
- Threat
- DUALS(3)
- Vars
- Q(e);N_PINQ(G)::R(F)
- Q(e);N_PINQ(G)::B(I)
- Refutation
- P(d);XR(F)
- Try
- R(F);XP(d)
- Threat
- DUALS(2)
- Vars
- Q(e);N_PINQ(G),N_SPINQ(e),XR(J)::B(I)
- S(g);XP(H)::B(I)
- S(g);::B(I)
- Refutation
- S(i);XR(F)
- Try
- Q(G);
- Threat
- QAR(G)+P(E)
- Vars
- Q(e);N_PINQ(G)::QAB(G)
- Refutation
- S(g);
- Try
- Actual
- Q(G);
- Threat
- S(B)
- Vars
- Q(e);N_PINQ(G)::QAB(G),XS(g)
- Q(e);N_PINQ(G)::QAB1(G)
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