MESON Chess Problem Database
Problem Display
PID: 255361 (1b3R2/2ppKn2/3P1pp1/2QBBkr1/3PNpp1/5nP1/3N4/5R2 w - - 0 1)
Novitski, Petr Adrinovich
Problemist Ukraini, 2021
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Rxf4#
- 1...Sg1
- 2.Rxf4#
- 1...Sxd2
- 2.Rxf4#
- 1...Sh2
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...S3xe5
- 2.Rxf4#
- 1...S7xe5
- 2.Rxf6#
- 1...Sxd6
- 2.Rxf6#
- 1...Sh6
- 2.Rxf6#
- 1...Sd8
- 2.Rxf6#
- 1...Sh8
- 2.Rxf6#
- 1...fxg3
- 2.Sxg3#
- 1...fxe5
- 2.Rxf7#
- 1...Se1
- Tries
- 1.Sc3?
- threat
- 2.Be4#
- 1...Sxd2
- 2.Rxf4#
- 1...Sxd6
- 2.Rxf6#
- 1...Rh5!
- threat
- 1.Bc6?
- threat
- 2.Bxd7#
- 1...Sxd2
- 2.Rxf4#
- 1...Sxd4
- 2.Rxf4#
- 1...Sd8
- 2.Rxf6#
- 1...dxc6!
- threat
- 1.Bxf6?
- threat
- 2.Be6#
- 1...Sxd2
- 2.Rxf4#
- 1...S3e5
- 2.Rxf4#
- 1...S7e5
- 2.Bxe5#
- 1...fxg3!
- threat
- 1.Rxf3?
- threat
- 2.Rxf4#
- 1...fxe5
- 2.Rxf7#
- 1...gxf3!
- threat
- 1.Qc6?
- threat
- 2.Qxd7#
- 1...S3xe5
- 2.Rxf4#
- 1...S7xe5
- 2.Rxf6#
- 1...dxc6
- 2.Be6#
- 1...Sd8
- 2.Rxf6#
- 1...Sxd4!
- threat
- 1.gxf4?
- threat
- 2.Sg3#
- 1...S7xe5
- 2.Rxf6#
- 1...fxe5
- 2.Rxf7#
- 1...g3!
- threat
- 1.Sc3?
- Keys
- 1.Bxf4!
- threat
- 2.Be6#
- 1...Sxd2
- 2.Bxd2#
- 1...S3e5
- 2.Bxe5#
- 1...S7e5
- 2.Rxf6#
- threat
- 1.Bxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- S(a);OGATE,P_SPINP(b)::R1(A),XP(b)
- S(a);OGATE,P_SPINP(b),XS(B)::R1(A),XP(b)
- S(a);OGATE,P_SPINP(b),XB(H)::R1(A),XP(b)
- S(j);OGATE,P_SPINP(f),XB(H)::R1(K),XP(f)
- S(j);OGATE,P_SPINP(f),XP(I)::R1(K),XP(f)
- S(j);OGATE,P_SPINP(f)::R1(K),XP(f)
- P(b);P_SPINS(a),XP(C)::S(E),XP(b)
- P(f);OGATEB,P_SPINS(j),XB(H)::R(K),XS(j)
- Tries
- Try
- S(E);
- Threat
- B(G)
- Vars
- S(a);OGATE,P_SPINP(b),XS(B)::R1(A),XP(b)
- S(j);OGATE,P_SPINP(f),XP(I)::R1(K),XP(f)
- Refutation
- R(e);
- Try
- B(G);
- Threat
- B(G),XP(i)
- Vars
- S(a);OGATE,P_SPINP(b),XS(B)::R1(A),XP(b)
- S(a);OGATE,P_SPINP(b),XP(D)::R1(A),XP(b)
- S(j);OGATE,P_SPINP(f)::R1(K),XP(f)
- Refutation
- P(i);XB(G)
- Try
- B(H);XP(f)
- Threat
- QAR(F)+B(G),DCHECK
- Vars
- S(a);OGATE,P_SPINP(b),XS(B)::R1(A),XP(b)
- S(a);OGATE,P_SPINP(b)::R1(A),XP(b)
- S(j);OGATEB::R(K)+B(H),XS(j)
- Refutation
- P(b);P_SPINS(a),XP(C)
- Try
- R(A);P_PINP(b),XS(a)
- Threat
- R1(A),XP(b)
- Vars
- P(f);OGATEB,P_SPINS(j),XB(H)::R(K),XS(j)
- Refutation
- P(c);N_SPINP(b),XR(A)
- Try
- Q(F);
- Threat
- QAB(F),XP(i)
- Vars
- S(a);OGATE,P_SPINP(b),XB(H)::R1(A),XP(b)
- S(j);OGATE,P_SPINP(f),XB(H)::R1(K),XP(f)
- P(i);N_GUARD,XQ(F)::B(G)
- S(j);OGATE,P_SPINP(f)::R1(K),XP(f)
- Refutation
- S(a);P_SPINP(b),XP(D)
- Try
- P(C);XP(b)
- Threat
- S(E)
- Vars
- S(j);OGATE,P_SPINP(f),XB(H)::R1(K),XP(f)
- P(f);OGATEB,P_SPINS(j),XB(H)::R(K),XS(j)
- Refutation
- P(c);
- Try
- Actual
- B(H);XP(b)
- Threat
- QAR(F)+B(G),DCHECK
- Vars
- S(a);OGATE,XS(B)::R(A)+B(H),XS(a)
- S(a);OGATEB::R(A)+B(H),XS(a)
- S(j);OGATE,P_SPINP(f)::R1(K),XP(f)
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