MESON Chess Problem Database
Problem Display
PID: 137048 (8/3KNpp1/2p1p3/n1P1kBBR/1P1R2Pp/3p3r/1N3Q2/2b4b w - - 0 1)
Kirillov, Valery Afanasievich
1st Prize, Tidskrift for Schack, 1994
#2
11 + 11
| 56 | The Problemist | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Rh2
- 2.Sxd3#
- 1...Re3
- 2.Qf4#
- 1...Rf3
- 2.Re4#
- 1...Bxb2
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bf3
- 2.Sxd3#
- 1...Be4
- 2.Rxe4#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sb7
- 2.Sc4#
- 1...d2
- 2.Qf4#
- 1...f6
- 2.Sg6#
- 1...Rh2
- Tries
- 1.Sxc6+?
- 1...Sxc6
- 2.Sc4#
- 1...Bxc6+!
- 1...Sxc6
- 1.Bxd3?
- threat
- 2.Bf6#
- 1...Bxg5
- 2.Qf4#
- 1...Rf3
- 2.Re4#
- 1...Bf4
- 2.Qxf4#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Sg6#
- 2.Bf4#
- 2.Bxf6#
- 1...Bf3!
- threat
- 1.Bxe6?
- threat
- 2.Bf6#
- 1...Bxg5
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bf3
- 2.Sxd3#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Sg6#
- 2.Bf4#
- 2.Bxf6#
- 1...Rf3!
- threat
- 1.Bg6?
- threat
- 2.Bf6#
- 1...Bxg5
- 2.Qf4#
- 1...Rf3
- 2.Re4#
- 1...Bf4
- 2.Qxf4#
- 1...Bf3
- 2.Sxd3#
- 1...f6
- 2.Bf4#
- 2.Bxf6#
- 1...f5!
- threat
- 1.Bf4+?
- 1...Kf6
- 2.Sg8#
- 2.g5#
- 1...Bxf4!
- 1...Kf6
- 1.Rxd3?
- threat
- 2.Qd4#
- 1...Rxd3+
- 2.Sxd3#
- 1...Bxb2
- 2.Qxb2#
- 2.Qf4#
- 1...Re3
- 2.Qf4#
- 1...Sb3
- 2.Sc4#
- 1...Be3!
- threat
- 1.Rc4?
- threat
- 2.Qd4#
- 1...Bxb2
- 2.Qxb2#
- 2.Qf4#
- 1...Sxc4
- 2.Sxc4#
- 1...Re3
- 2.Qf4#
- 1...Be3
- 2.Sxd3#
- 1...Sb3!
- threat
- 1.Rf4?
- threat
- 2.Qd4#
- 1...Bxb2
- 2.Qxb2#
- 1...Bxf4
- 2.Qxf4#
- 1...Be3
- 2.Sxd3#
- 1...Be4
- 2.Rxe4#
- 1...Sb3
- 2.Sc4#
- 1...Re3!
- threat
- 1.Rd6?
- threat
- 2.Qd4#
- 1...Bxb2
- 2.Qxb2#
- 2.Qf4#
- 1...Re3
- 2.Qf4#
- 1...Be3
- 2.Sxd3#
- 1...Sb3
- 2.Sc4#
- 1...Bd5!
- threat
- 1.Sxc6+?
- Keys
- 1.Bh7!
- threat
- 2.Bf6#
- 1...Bxg5
- 2.Qf4#
- 1...Rf3
- 2.Re4#
- 1...Bf4
- 2.Qxf4#
- 1...Bf3
- 2.Sxd3#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Sg6#
- 2.Bf4#
- 2.Bxf6#
- threat
- 1.Bh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- R(d);N_GUARD::S(A),XP(c)
- R(d);S_CUTB(a)::QAB1(B)
- R(d);S_CUTB(b)::R1(D)
- B(a);N_GUARD,XS(A)::QAB1(B)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(b);S_CUTR(d)::S(A),XP(c)
- B(b);N_GUARD::R1(D),XB(b)
- S(f);N_GUARD::S(A)
- S(f);N_GUARD::S(A),XS(f)
- P(c);S_CUTB(a)::QAB1(B)
- P(j);N_GUARD::S(K)
- Tries
- Try
- S(K);CHECK,XP(h)
- Vars
- S(f);XS(K)::S(A)
- Refutation
- B(b);CHECK,XS(K)
- Try
- B(G);XP(c)
- Threat
- R(I)+B(H),DCHECK
- Vars
- B(a);N_GUARD,P_SPINB(a),XB(H)::QAB1(B)
- R(d);S_CUTB(b)::R1(D)
- B(a);N_GUARD::QAB1(B),XB(a)
- P(j);N_GUARD::S(K)
- Refutation
- B(b);
- Try
- B(G);XP(i)
- Threat
- R(I)+B(H),DCHECK
- Vars
- B(a);N_GUARD,P_SPINB(a),XB(H)::QAB1(B)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(b);S_CUTR(d)::S(A),XP(c)
- P(j);N_GUARD::S(K)
- Refutation
- R(d);
- Try
- B(G);
- Threat
- R(I)+B(H),DCHECK
- Vars
- B(a);N_GUARD,P_SPINB(a),XB(H)::QAB1(B)
- R(d);S_CUTB(b)::R1(D)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(b);S_CUTR(d)::S(A),XP(c)
- Refutation
- P(j);
- Try
- B(H);CHECK
- Refutation
- B(a);XB(H)
- Try
- R(D);XP(c)
- Threat
- QAB1(B)
- Vars
- R(d);CHECK,XR(D)::S(A),XR(d)
- R(d);S_CUTB(a)::QAB1(B)
- S(f);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- R(D);
- Threat
- QAB1(B)
- Vars
- S(f);XR(D)::S(A),XS(f)
- R(d);S_CUTB(a)::QAB1(B)
- B(a);S_CUTR(d)::S(A),XP(c)
- Refutation
- S(f);
- Try
- R(D);
- Threat
- QAB1(B)
- Vars
- B(a);OGATE,XS(A)::QAB(B),XB(a)
- B(a);OGATE,XR(D)::QAB1(B),XB(a)
- B(a);S_CUTR(d)::S(A),XP(c)
- B(b);N_GUARD::R1(D),XB(b)
- S(f);N_GUARD::S(A)
- Refutation
- R(d);
- Try
- R(D);
- Threat
- QAB1(B)
- Vars
- R(d);S_CUTB(a)::QAB1(B)
- B(a);S_CUTR(d)::S(A),XP(c)
- S(f);N_GUARD::S(A)
- Refutation
- B(b);
- Try
- Actual
- B(G);
- Threat
- R(I)+B(H),DCHECK
- Vars
- B(a);N_GUARD,P_SPINB(a),XB(H)::QAB1(B)
- R(d);S_CUTB(b)::R1(D)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(b);S_CUTR(d)::S(A),XP(c)
- P(j);N_GUARD::S(K)
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