MESON Chess Problem Database
Problem Display
PID: 66142 (4R3/2K5/Q1bp2Np/2pk4/1B1P2R1/5P2/Nn4B1/2r3b1 w - - 0 1)
Keller, Michael
Phenix, 2000
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sc3#
- 1...Rb1
- 2.Sc3#
- 1...Rd1
- 2.Sc3#
- 1...Re1
- 2.Sc3#
- 1...Rf1
- 2.Sc3#
- 1...Rc3
- 2.Sxc3#
- 1...Rc4
- 2.Qxc6#
- 1...Bxd4
- 2.Sf4#
- 2.f4#
- 1...Sc4
- 2.Qxc6#
- 1...cxb4
- 2.Sxb4#
- 1...cxd4
- 2.Sf4#
- 2.f4#
- 1...c4
- 2.Qxc6#
- 1...Ra1
- Tries
- 1.Bf1?
- threat
- 2.Qxc6#
- 1...Rxf1
- 2.Sc3#
- 1...Bxe8
- 2.Qxd6#
- 1...cxb4
- 2.Sxb4#
- 1...cxd4
- 2.Sf4#
- 1...Ba4
- 2.Qxd6#
- 1...Bb5
- 2.Qxd6#
- 1...Bb7
- 2.Qxb7#
- 2.Qxd6#
- 1...Bd7
- 2.Qxd6#
- 1...Ba8
- 2.Qxd6#
- 2.Qxa8#
- 1...Sd3!
- threat
- 1.Bc3?
- threat
- 2.Sf4#
- 2.f4#
- 1...Rxc3
- 2.Sxc3#
- 1...Bxe8
- 2.Sf4#
- 1...cxd4
- 2.Qxc6#
- 1...Re1
- 2.Sf4#
- 1...Rf1
- 2.Sf4#
- 1...Rc2
- 2.Sf4#
- 1...Bh2
- 2.f4#
- 1...Be3
- 2.f4#
- 1...Sd3
- 2.f4#
- 1...Bb5!
- threat
- 1.Rge4?
- threat
- 2.Sf4#
- 2.Se7#
- 1...Bh2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Sd3
- 2.Se7#
- 1...Bb5!
- threat
- 1.Ree4?
- threat
- 2.Sf4#
- 2.Se7#
- 1...Bh2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Sd3
- 2.Se7#
- 1...Bb5!
- threat
- 1.Qe2?
- threat
- 2.Se7#
- 2.Qe6#
- 1...Bxe8
- 2.Se7#
- 1...Sd3
- 2.Qe6#
- 1...Re1
- 2.Sc3#
- 2.Se7#
- 1...Bd7
- 2.Se7#
- 1...Be3!
- threat
- 1.Qd3?
- threat
- 2.Sf4#
- 2.f4#
- 1...Bxe8
- 2.Sf4#
- 1...Re1
- 2.Sc3#
- 2.Sf4#
- 1...Rf1
- 2.Sc3#
- 2.Sf4#
- 1...Rc2
- 2.Sf4#
- 1...Bh2
- 2.f4#
- 1...Be3
- 2.f4#
- 1...Sxd3!
- threat
- 1.dxc5?
- threat
- 2.Qxc6#
- 1...Bxe8
- 2.Qxd6#
- 1...Bd4
- 2.Sf4#
- 2.f4#
- 1...Ba4
- 2.Qxd6#
- 1...Bb5
- 2.Qxd6#
- 1...Bb7
- 2.Qxb7#
- 2.Qxd6#
- 1...Bd7
- 2.Qxd6#
- 1...Ba8
- 2.Qxd6#
- 2.Qxa8#
- 1...Rxc5!
- threat
- 1.Bf1?
- Keys
- 1.Se5!
- threat
- 2.Qxc6#
- 1...Bxe8
- 2.Qxd6#
- 1...cxb4
- 2.Sxb4#
- 1...cxd4
- 2.f4#
- 1...dxe5
- 2.Rxe5#
- 1...Ba4
- 2.Qxd6#
- 1...Bb5
- 2.Qxd6#
- 1...Bb7
- 2.Qxb7#
- 2.Qxd6#
- 1...Bd7
- 2.Qxd6#
- 1...Ba8
- 2.Qxd6#
- 2.Qxa8#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 9
- Sets
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- R(a);SBLOCK::QAB1(G),XB(f)
- S(c);SBLOCK::QAB1(G),XB(f)
- P(d);XB(D)::S(A),XP(d)
- P(d);::QAB1(G),XB(f)
- Tries
- Try
- B(B);
- Threat
- QAB1(G),XB(f)
- Vars
- R(a);N_GUARD,XB(B)::S(A)
- B(f);OGATE,XR(J)::QAR1(G),XP(g)
- P(d);XB(D)::S(A),XP(d)
- P(d);SBLOCK,XP(E)::S(H)
- B(f);OGATE::QAR1(G),XP(g)
- Refutation
- S(c);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(a);XB(D)::S(A),XR(a)
- B(f);XR(J)::S(H)
- P(d);XP(E)::QAB1(G),XB(f)
- R(a);::S(H)
- B(b);::B(B)+P(C)
- S(c);::B(B)+P(C)
- Refutation
- B(f);
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- B(b);::S(H)
- S(c);::S(H)
- Refutation
- B(f);
- Try
- R(J);
- Threat
- DUALS(2)
- Vars
- B(b);::S(H)
- S(c);::S(H)
- Refutation
- B(f);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- B(f);XR(J)::S(H)
- S(c);::QAB1(G)
- B(f);::S(H)
- Refutation
- B(b);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- B(f);XR(J)::S(H)
- R(a);::S(H)
- B(b);::B(B)+P(C)
- Refutation
- S(c);XQ(G)
- Try
- P(E);XP(d)
- Threat
- QAB1(G),XB(f)
- Vars
- B(f);OGATE,P_PINP(E),XR(J)::QAR1(G),XP(g)
- B(f);OGATE,P_PINP(E)::QAR1(G),XP(g)
- Refutation
- R(a);XP(E)
- Try
- Actual
- S(H);
- Threat
- QAB1(G),XB(f)
- Vars
- B(f);OGATE,XR(J)::QAR1(G),XP(g)
- P(d);XB(D)::S(A),XP(d)
- P(d);SBLOCK,XP(E)::B(B)+P(C)
- P(g);OGATE,XS(H)::R1(J),XP(g)
- B(f);OGATE::QAR1(G),XP(g)
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