MESON Chess Problem Database
Problem Display
PID: 147272 (q6B/p1R1P2Q/n2pp3/2PkNppp/BP1p2R1/8/3N4/2n2K2 w - - 0 1)
Ghirelli, Bruno
Chess, 1955
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Qc6
- 2.Bxc6#
- 1...Qb8
- 2.Bc6#
- 1...Qc8
- 2.Bc6#
- 1...Qd8
- 2.Bc6#
- 1...Qf8
- 2.Bc6#
- 1...Qg8
- 2.Bc6#
- 1...Sa2
- 2.Bb3#
- 1...Se2
- 2.Bb3#
- 1...Sb3
- 2.Bxb3#
- 1...Sd3
- 2.Bb3#
- 1...fxg4
- 2.Qe4#
- 1...f4
- 2.Qe4#
- 1...hxg4
- 2.Qh1#
- 1...dxc5
- 2.Rd7#
- 1...dxe5
- 2.Rd7#
- 1...Qc6
- Tries
- 1.Sef3?
- threat
- 2.Rxd4#
- 1...Qxh8
- 2.Bc6#
- 1...fxg4
- 2.Qe4#
- 1...dxc5
- 2.Rd7#
- 1...e5
- 2.Qf7#
- 1...Se2
- 2.Bb3#
- 1...Sb3
- 2.Bxb3#
- 1...d3
- 2.Rd4#
- 1...f4
- 2.Qe4#
- 1...hxg4!
- threat
- 1.Sc6?
- threat
- 2.Rxd4#
- 1...Sxb4
- 2.Sxb4#
- 1...fxg4
- 2.Qe4#
- 1...hxg4
- 2.Qh1#
- 1...dxc5
- 2.Rd7#
- 1...e5
- 2.Qf7#
- 1...Se2
- 2.Bb3#
- 1...Sb3
- 2.Bxb3#
- 1...d3
- 2.Rd4#
- 1...f4
- 2.Qe4#
- 1...Qxh8!
- threat
- 1.Sd7?
- threat
- 2.Rxd4#
- 1...Qxh8
- 2.Bc6#
- 1...fxg4
- 2.Qe4#
- 1...hxg4
- 2.Qh1#
- 1...e5
- 2.Qf7#
- 1...Se2
- 2.Bb3#
- 1...Sb3
- 2.Bxb3#
- 1...d3
- 2.Rd4#
- 1...f4
- 2.Qe4#
- 1...dxc5!
- threat
- 1.Sf7?
- threat
- 2.Rxd4#
- 1...Qxh8
- 2.Bc6#
- 1...fxg4
- 2.Qe4#
- 1...hxg4
- 2.Qh1#
- 1...dxc5
- 2.Rd7#
- 1...Se2
- 2.Bb3#
- 1...Sb3
- 2.Bxb3#
- 1...d3
- 2.Rd4#
- 1...f4
- 2.Qe4#
- 1...e5!
- threat
- 1.Bb5?
- threat
- 2.Bc4#
- 1...dxc5
- 2.Rd7#
- 1...Qxh8!
- threat
- 1.Sef3?
- Keys
- 1.Sd3!
- threat
- 2.Rxd4#
- 1...Qxh8
- 2.Bc6#
- 1...fxg4
- 2.Qe4#
- 1...hxg4
- 2.Qh1#
- 1...dxc5
- 2.Rd7#
- 1...e5
- 2.Qf7#
- 1...Se2
- 2.Bb3#
- 1...Sb3
- 2.Bxb3#
- 1...f4
- 2.Qe4#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(k);N_GUARD::B(C),XQ(k)
- Q(k);N_GUARD::B(C)
- S(a);N_GUARD::B(C)
- S(a);N_GUARD::B(C),XS(a)
- P(d);OGATE,XR(E)::QAB1(J)
- P(d);OGATE::QAB1(J)
- P(f);OGATE,XR(E)::QAB(J)
- P(h);OGATEB,XP(F)::R(H)
- P(h);OGATEB,XS(G)::R(H)
- Tries
- Try
- S(G);
- Threat
- R1(E),XP(b)
- Vars
- Q(k);N_GUARD,XB(K)::B(C)
- P(d);OGATE,XR(E)::QAB1(J)
- P(h);OGATEB,XP(F)::R(H)
- P(i);OGATEB::QAB(J)
- S(a);N_GUARD::B(C)
- S(a);N_GUARD::B(C),XS(a)
- P(b);::R1(E)
- P(d);OGATE::QAB1(J)
- Refutation
- P(f);XR(E)
- Try
- S(G);
- Threat
- R1(E),XP(b)
- Vars
- S(g);XP(D)::S(G),XS(g)
- P(d);OGATE,XR(E)::QAB1(J)
- P(f);OGATE,XR(E)::QAB(J)
- P(h);OGATEB,XP(F)::R(H)
- P(i);OGATEB::QAB(J)
- S(a);N_GUARD::B(C)
- S(a);N_GUARD::B(C),XS(a)
- P(b);::R1(E)
- P(d);OGATE::QAB1(J)
- Refutation
- Q(k);XB(K)
- Try
- S(G);
- Threat
- R1(E),XP(b)
- Vars
- Q(k);N_GUARD,XB(K)::B(C)
- P(d);OGATE,XR(E)::QAB1(J)
- P(f);OGATE,XR(E)::QAB(J)
- P(i);OGATEB::QAB(J)
- S(a);N_GUARD::B(C)
- S(a);N_GUARD::B(C),XS(a)
- P(b);::R1(E)
- P(d);OGATE::QAB1(J)
- Refutation
- P(h);XP(F)
- Try
- S(G);
- Threat
- R1(E),XP(b)
- Vars
- Q(k);N_GUARD,XB(K)::B(C)
- P(d);OGATE,XR(E)::QAB1(J)
- P(f);OGATE,XR(E)::QAB(J)
- P(h);OGATEB,XP(F)::R(H)
- S(a);N_GUARD::B(C)
- S(a);N_GUARD::B(C),XS(a)
- P(b);::R1(E)
- P(d);OGATE::QAB1(J)
- Refutation
- P(i);
- Try
- B(C);
- Threat
- B(C)
- Vars
- P(h);OGATEB,XP(F)::R(H)
- Refutation
- Q(k);XB(K)
- Try
- Actual
- S(G);
- Threat
- R1(E),XP(b)
- Vars
- Q(k);N_GUARD,XB(K)::B(C)
- P(d);OGATE,XR(E)::QAB1(J)
- P(f);OGATE,XR(E)::QAB(J)
- P(h);OGATEB,XP(F)::R(H)
- P(i);OGATEB::QAB(J)
- S(a);N_GUARD::B(C)
- S(a);N_GUARD::B(C),XS(a)
- P(d);OGATE::QAB1(J)
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