MESON Chess Problem Database
Problem Display
PID: 148129 (1K6/2p4b/7b/1R5r/3R3r/NPk1BN2/1p2P3/1QnB4 w - - 0 1)
Goumondy, Claude
Mat, 1977
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Rc4#
- 1...Rh2
- 2.Rc4#
- 1...Rh3
- 2.Rc4#
- 1...Rxd4
- 2.Bxd4#
- 1...Re4
- 2.Qc2#
- 1...Rf4
- 2.Bd2#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rc5
- 2.Rxc5#
- 1...Rf5
- 2.Qc2#
- 1...Rg5
- 2.Bd2#
- 1...Bf4
- 2.Rc4#
- 1...Bg5
- 2.Rc5#
- 1...Bg7
- 2.Bd2#
- 1...Bf8
- 2.Bd2#
- 1...Bxb1
- 2.Sxb1#
- 1...Bc2
- 2.Qxc2#
- 1...Be4
- 2.Rc4#
- 1...Bf5
- 2.Rc5#
- 1...Bg8
- 2.Qc2#
- 1...Sxb3
- 2.Rxb3#
- 1...Sd3
- 2.Qc2#
- 1...Rh1
- Tries
- 1.Rd2?
- threat
- 2.Qxb2#
- 1...Bxb1
- 2.Sxb1#
- 1...Bc2
- 2.Rxc2#
- 2.Qxc2#
- 1...Sd3
- 2.Rc2#
- 2.Qc2#
- 1...Rxb5+!
- threat
- 1.Rd3+?
- 1...Sxd3
- 2.Qc2#
- 1...Bxd3!
- 1...Sxd3
- 1.Rf4?
- threat
- 2.Bd2#
- 2.Bd4#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rxf4
- 2.Bd2#
- 1...Bxf4
- 2.Bd4#
- 1...Sxe2
- 2.Bd2#
- 1...Sxb3
- 2.Rxb3#
- 1...Bg7
- 2.Bd2#
- 1...c5
- 2.Bd2#
- 1...Rd5!
- threat
- 1.Rxh4?
- threat
- 2.Bd4#
- 2.Rc4#
- 1...Rxb5+
- 2.Sxb5#
- 1...Bxe3
- 2.Rc4#
- 1...Sxe2
- 2.Rc4#
- 1...Sxb3
- 2.Rc4#
- 2.Rxb3#
- 1...Bd3
- 2.Bd4#
- 1...Rc5
- 2.Bd4#
- 2.Rxc5#
- 1...Rd5
- 2.Rc4#
- 1...Bf4
- 2.Bd4#
- 1...Bg7
- 2.Bd2#
- 2.Rc4#
- 1...Be4
- 2.Bd4#
- 1...Bg8
- 2.Bd4#
- 2.Qc2#
- 1...c5
- 2.Rc4#
- 1...Rxh4!
- threat
- 1.Rf5?
- threat
- 2.Sb5#
- 2.Qc2#
- 1...Rxf5
- 2.Qc2#
- 1...Bxf5
- 2.Sb5#
- 1...c6
- 2.Qc2#
- 1...Rxd4!
- threat
- 1.Rg5?
- threat
- 2.Sb5#
- 2.Bd2#
- 1...Rxg5
- 2.Bd2#
- 1...Bxg5
- 2.Sb5#
- 1...Sxb3
- 2.Sb5#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Bd2#
- 1...c6
- 2.Bd2#
- 1...Rxd4!
- threat
- 1.Qd3+?
- 1...Sxd3
- 2.Sb1#
- 1...Bxd3!
- 1...Sxd3
- 1.Rd2?
- Keys
- 1.Re4!
- threat
- 2.Bd4#
- 2.Qc2#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rxe4
- 2.Qc2#
- 1...Bxe3
- 2.Qc2#
- 1...Bxe4
- 2.Bd4#
- 1...Sxe2
- 2.Qc2#
- 1...Sxb3
- 2.Rxb3#
- 2.Qc2#
- 2.Qd3#
- 1...Rd5
- 2.Qc2#
- 1...Bg7
- 2.Bd2#
- 2.Qc2#
- 1...c5
- 2.Qc2#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 18
- Sets
- R(d);N_GUARD::R1(H)
- R(d);OGATE,XR(H)::B(F),XR(d)
- R(d);S_CUTB(h)::QAR1(A)
- R(d);S_CUTB(f)::B(F)
- R(e);CHECK,XR(I)::S(D),XR(e)
- R(e);N_GUARD::R(I),XR(e)
- R(e);S_CUTB(h)::QAR1(A)
- R(e);S_CUTB(f)::B(F)
- B(f);S_CUTR(d)::R1(H)
- B(f);S_CUTR(e)::R(I)
- B(f);N_GUARD::B(F)
- B(h);XQ(A)::S(D),XB(h)
- B(h);N_GUARD::QAR1(A),XB(h)
- B(h);S_CUTR(d)::R1(H)
- B(h);S_CUTR(e)::R(I)
- B(h);N_GUARD::QAR1(A)
- S(a);OGATE,XP(E)::R1(I),XS(a)
- S(a);S_CUTB(h)::QAR1(A)
- Tries
- Try
- R(H);
- Threat
- QAB1(A),XP(b)
- Vars
- B(h);XQ(A)::S(D),XB(h)
- Refutation
- R(e);CHECK,XR(I)
- Try
- R(H);CHECK
- Vars
- S(a);XR(H)::QAR1(A)
- Refutation
- B(h);XR(H)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,XR(I)::S(D),XR(e)
- R(d);XR(H)::B(F)
- B(f);XR(H)::B(F)
- S(a);XP(C)::B(F)
- S(a);OGATE,XP(E)::R1(I),XS(a)
- B(f);::B(F)
- P(g);::B(F)
- Refutation
- R(e);
- Try
- R(H);XR(d)
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,XR(I)::S(D),XR(e)
- B(f);XB(F)::R1(H)
- S(a);XP(C)::R1(H)
- B(h);::B(F)
- R(e);::R1(H)
- B(f);::B(F)
- P(g);::R1(H)
- Refutation
- R(e);XR(H)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(e);XR(I)::QAR1(A)
- B(h);XR(I)::S(D)
- P(g);::QAR1(A)
- Refutation
- R(d);XR(H)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(e);XR(I)::B(F)
- B(f);XR(I)::S(D)
- S(a);XP(E)::S(D)
- B(h);N_GUARD::QAR1(A),XB(h)
- B(h);::B(F)
- P(g);::B(F)
- Refutation
- R(d);XR(H)
- Try
- Q(A);CHECK
- Vars
- S(a);XQ(A)::S(D)
- Refutation
- B(h);XQ(A)
- Try
- Actual
- R(H);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,XR(I)::S(D),XR(e)
- R(d);XR(H)::QAR1(A)
- B(f);XB(F)::QAR1(A)
- B(h);XR(H)::B(F)
- S(a);XP(C)::QAR1(A)
- R(e);::QAR1(A)
- P(g);::QAR1(A)
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