MESON Chess Problem Database
Problem Display
PID: 268920 (8/1p6/pP5p/pN5Q/kn3R2/p7/n1PK4/1R4BB w - - 0 1)
Kapustin, Fedor Mikhailovich
Tkachenko, Sergiy Ivanovich
Problemist Ukraini, 2023
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- Tries
- 1.Kd1?
- 1...Sc3+
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3+
- 1.Ke1?
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...axb5!
- 1...Sc1
- 1.Ke3?
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...axb5!
- 1...Sc1
- 1.Bf2?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Bh2?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Be3?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Bg2?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Bf3?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Bc6?
- threat
- 2.Sc3#
- 1...axb5
- 2.Bxb5#
- 2.Qxb5#
- 1...Sc3
- 2.Sxc3#
- 1...bxc6!
- threat
- 1.Bxb7?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Ra1?
- 1...Sc3
- 2.Sxc3#
- 2.Rxa3#
- 1...Sc1
- 2.Sc3#
- 2.Rxa3#
- 1...axb5!
- 1...Sc3
- 1.Rc1?
- 1...Sxc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...axb5!
- 1...Sxc1
- 1.Rd1?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Re1?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Rbf1?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Rbxb4+?
- 1...Sxb4
- 2.Sc3#
- 1...axb4!
- 1...Sxb4
- 1.Rfxb4+?
- 1...Sxb4
- 2.Sc3#
- 1...axb4!
- 1...Sxb4
- 1.Rc4?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Rd4?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Re4?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Rg4?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Rh4?
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...axb5!
- 1...Sc3
- 1.Qd1?
- 1...Kxb5
- 2.c4#
- 1...axb5
- 2.c3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...h5!
- 1...Kxb5
- 1.Qf7?
- 1...Kxb5
- 2.Qe8#
- 2.Qd7#
- 1...axb5
- 2.Qb3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc1
- 2.Sc3#
- 1...h5!
- 1...Kxb5
- 1.Qe8?
- threat
- 2.Sc3#
- 2.Sd6#
- 2.Sa7#
- 2.Sc7#
- 1...Sc3
- 2.Sxc3#
- 1...axb5!
- threat
- 1.Qh3?
- 1...Kxb5
- 2.Qd7#
- 1...axb5
- 2.Qb3#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...h5!
- 1...Kxb5
- 1.Qd5?
- 1...axb5
- 2.Qb3#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...h5!
- 1...axb5
- 1.c3?
- 1...Sxc3
- 2.Sxc3#
- 1...axb5
- 2.Qd1#
- 1...Sc1!
- 1...Sxc3
- 1.c4?
- 1...axb5
- 2.Qxb5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sd3
- 2.Qd1#
- 1...Sd5
- 2.Qd1#
- 1...Sc6
- 2.Qd1#
- 1...Sc2!
- 1...axb5
- 1.Kd1?
- Keys
- 1.Bd5!
- threat
- 2.Bb3#
- 1...Kxb5
- 2.Qe8#
- 1...Sc1
- 2.Sc3#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- S(a);CHECK,N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- K(E);S_FLIGHT
- Vars
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- P(f);XS(G)
- Try
- K(E);S_FLIGHT
- Vars
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- P(f);XS(G)
- Try
- B(B);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- B(B);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- B(B);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- B(C);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- B(C);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- B(C);
- Threat
- B(C)+S(G),DCHECK
- Vars
- S(a);::B(C)+S(G),DCHECK,XS(a)
- Refutation
- P(h);XB(C)
- Try
- B(C);XP(h)
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- R(A);
- Refutation
- P(f);XS(G)
- Try
- R(A);
- Vars
- S(a);N_GUARD,XR(A)::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- P(f);XS(G)
- Try
- R(A);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- R(A);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- R(A);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- R(A);CHECK,XS(d)
- Vars
- S(a);P_SPINS(a),XR(A)::S(G)
- Refutation
- P(e);P_SPINP(e),XR(A)
- Try
- R(F);CHECK,XS(d)
- Vars
- S(a);XR(F)::S(G)
- Refutation
- P(e);XR(F)
- Try
- R(F);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- R(F);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- R(F);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- R(F);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- R(F);
- Vars
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(f);XS(G)
- Try
- Q(H);
- Vars
- K(c);S_FLIGHT,XS(G)::P(D)
- P(f);SBLOCK,XS(G)::QAB(H)+P(D)
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(g);
- Try
- Q(H);
- Vars
- P(f);SBLOCK,XS(G)::QAB1(H)
- S(a);N_GUARD::S(G),XS(a)
- S(a);N_GUARD::S(G)
- Refutation
- P(g);
- Try
- Q(H);
- Threat
- DUALS(4)
- Vars
- S(a);::QAB(H)+S(G),DCHECK,XS(a)
- Refutation
- P(f);P_SPINP(f),XS(G)
- Try
- Q(H);
- Vars
- K(c);OGATEB,S_FLIGHT,XS(G)::QAB(H)
- P(f);SBLOCK,XS(G)::QAB1(H)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- P(g);
- Try
- Q(H);
- Vars
- P(f);SBLOCK,XS(G)::QAB1(H)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- P(g);
- Try
- P(D);
- Vars
- S(a);XP(D)::S(G),XS(a)
- P(f);SBLOCK,XS(G)::QAB(H)
- Refutation
- S(a);
- Try
- P(D);N_PINS(d)
- Vars
- P(f);OGATE,XS(G)::QAB1(H),XP(f)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::QAB(H)
- Refutation
- S(d);
- Try
- Actual
- B(C);
- Threat
- B(C)
- Vars
- K(c);OGATEB,S_FLIGHT,XS(G)::QAB(H)
- S(a);N_GUARD::S(G)
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