MESON Chess Problem Database
Problem Display
PID: 284665 (8/3N1Kn1/3p4/1PBkbN1p/6R1/P1pP1r2/1n4Q1/7q w - - 0 1)
Astanov, V
Mat, 1985
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Qxf3#
- 1...Qb1
- 2.Qxf3#
- 1...Qc1
- 2.Qxf3#
- 1...Qg1
- 2.Qxf3#
- 1...Qh2
- 2.Qxf3#
- 1...Qh4
- 2.Qxf3#
- 1...Bh2
- 2.Rd4#
- 1...Bg3
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Bf4
- 2.Se7#
- 1...Bf6
- 2.Se3#
- 1...Sd1
- 2.Qa2#
- 1...Sxd3
- 2.Qa2#
- 1...Sa4
- 2.Qa2#
- 1...Sc4
- 2.dxc4#
- 1...dxc5
- 2.Sb6#
- 1...Qa1
- Tries
- 1.Bf2?
- threat
- 2.Sb6#
- 1...Bh2
- 2.Rd4#
- 1...Bg3
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Bf4
- 2.Se7#
- 1...Bf6
- 2.Se3#
- 1...Sc4
- 2.dxc4#
- 1...Sa4!
- threat
- 1.Be3?
- threat
- 2.Sb6#
- 1...Bh2
- 2.Rd4#
- 1...Bg3
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Bf4
- 2.Se7#
- 1...Sa4
- 2.Qa2#
- 1...Sc4
- 2.dxc4#
- 1...Bf6!
- threat
- 1.Bb4?
- threat
- 2.Sb6#
- 1...Qg1
- 2.Qxf3#
- 1...Bh2
- 2.Rd4#
- 1...Bg3
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Bf6
- 2.Se3#
- 1...Sa4
- 2.Qa2#
- 1...Sc4
- 2.dxc4#
- 1...Bf4!
- threat
- 1.Bd4?
- threat
- 2.Sb6#
- 1...Bxd4
- 2.Rxd4#
- 1...Sa4
- 2.Qa2#
- 1...Sc4!
- threat
- 1.Bxd6?
- threat
- 2.Sb6#
- 1...Bxd6
- 2.Rd4#
- 1...Qg1
- 2.Qxf3#
- 1...Bd4
- 2.Rxd4#
- 1...Sa4
- 2.Qa2#
- 1...Sc4
- 2.dxc4#
- 1...Sxf5!
- threat
- 1.Rf4?
- threat
- 2.Se3#
- 2.Se7#
- 1...Qxg2
- 2.Se7#
- 1...Bxf4
- 2.Se7#
- 1...dxc5
- 2.Sb6#
- 1...Qc1
- 2.Se7#
- 2.Qxf3#
- 1...Qe1
- 2.Se7#
- 1...Qg1
- 2.Se7#
- 2.Qxf3#
- 1...Qh4
- 2.Se3#
- 2.Qxf3#
- 1...Bd4
- 2.Se7#
- 2.Rxd4#
- 1...Bf6
- 2.Se3#
- 1...Sd1
- 2.Se7#
- 2.Qa2#
- 1...Sc4
- 2.Se7#
- 2.dxc4#
- 1...Sxf5!
- threat
- 1.Bf2?
- Keys
- 1.Bg1!
- threat
- 2.Sb6#
- 1...Qxg1
- 2.Qxf3#
- 1...Bh2
- 2.Rd4#
- 1...Bg3
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Bf4
- 2.Se7#
- 1...Bf6
- 2.Se3#
- 1...Sa4
- 2.Qa2#
- 1...Sc4
- 2.dxc4#
- threat
- 1.Bg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- Q(a);N_GUARD::QAB(A),XR(d)
- B(f);N_GUARD::R1(D)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_PINS(G)::S(G)
- S(b);OGATE::QAB(A)
- S(b);OGATE,XP(C)::QAB(A)
- S(b);OGATE::P(C),XS(b)
- P(h);SBLOCK,XB(F)::S(H)
- Tries
- Try
- B(F);
- Threat
- S(H)
- Vars
- B(f);N_GUARD::R1(D)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_PINS(G)::S(G)
- S(b);OGATE::P(C),XS(b)
- Refutation
- S(b);
- Try
- B(F);
- Threat
- S(H)
- Vars
- B(f);N_GUARD::R1(D)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_PINS(G)::S(G)
- S(b);OGATE::QAB(A)
- S(b);OGATE::P(C),XS(b)
- Refutation
- B(f);N_PINS(G)
- Try
- B(F);
- Threat
- S(H)
- Vars
- Q(a);N_GUARD::QAB(A),XR(d)
- B(f);N_GUARD::R1(D)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_PINS(G)::S(G)
- S(b);OGATE::QAB(A)
- S(b);OGATE::P(C),XS(b)
- Refutation
- B(f);N_PINS(G)
- Try
- B(F);
- Threat
- S(H)
- Vars
- B(f);OGATE,XB(F)::R1(D),XB(f)
- S(b);OGATE::QAB(A)
- Refutation
- S(b);
- Try
- B(F);XP(h)
- Threat
- S(H)
- Vars
- B(f);N_GUARD,XB(F)::R1(D)
- Q(a);N_GUARD::QAB(A),XR(d)
- B(f);N_GUARD::R1(D),XB(f)
- S(b);OGATE::QAB(A)
- S(b);OGATE::P(C),XS(b)
- Refutation
- S(i);XS(G)
- Try
- R(D);N_SPINS(G)
- Threat
- DUALS(2)
- Vars
- Q(a);N_SPINR(d),XQ(A)::S(G)
- B(f);XR(D)::S(G)
- P(h);SBLOCK,XB(F)::S(H)
- Q(a);::S(G)
- B(f);::S(G)
- Refutation
- S(i);XS(G)
- Try
- Actual
- B(F);
- Threat
- S(H)
- Vars
- Q(a);N_GUARD,XB(F)::QAB(A),XR(d)
- B(f);N_GUARD::R1(D)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_PINS(G)::S(G)
- S(b);OGATE::QAB(A)
- S(b);OGATE::P(C),XS(b)
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