MESON Chess Problem Database
Problem Display
PID: 87589 (8/2pQ4/1bP5/q3Pp2/3NkB2/3pN3/B7/3R1RK1 w - - 0 1)
Kopyl, Valery Volodimirovich
Uralski Problemist, 2001
#2
10 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Qd5#
- 1...Qd2
- 2.Qd5#
- 1...Qc3
- 2.Qd5#
- 1...Qb4
- 2.Qd5#
- 1...Qa3
- 2.Qd5#
- 1...Qa4
- 2.Qd5#
- 1...Qd5
- 2.Qxd5#
- 1...Qa6
- 2.Qd5#
- 1...Qa7
- 2.Qd5#
- 1...Qa8
- 2.Qd5#
- 1...Bxd4
- 2.Qxf5#
- 1...Bc5
- 2.Qd5#
- 1...d2
- 2.Bb1#
- 1...Qe1
- Tries
- 1.Sexf5?
- threat
- 2.Sg3#
- 1...d2
- 2.Bb1#
- 1...Qe1
- 2.Bd5#
- 2.Rdxe1#
- 2.Qd5#
- 1...Qd5
- 2.Bxd5#
- 2.Rde1#
- 2.Qxd5#
- 1...Bxd4+!
- threat
- 1.Sdc2?
- threat
- 2.Qxf5#
- 2.Qxd3#
- 1...Qxe5
- 2.Qxd3#
- 1...dxc2
- 2.Qxf5#
- 2.Qd3#
- 1...Qd2
- 2.Bd5#
- 2.Qxf5#
- 2.Qd5#
- 1...Qc3
- 2.Bd5#
- 2.Qxf5#
- 2.Qd5#
- 1...Qa3
- 2.Bd5#
- 2.Qxf5#
- 2.Qd5#
- 1...Qb5
- 2.Qxf5#
- 1...Qd5
- 2.Bxd5#
- 2.Qxf5#
- 2.Qxd5#
- 1...Qa6
- 2.Bd5#
- 2.Qxf5#
- 2.Qd5#
- 1...Bd4
- 2.Qxf5#
- 2.Qxd4#
- 1...d2
- 2.Qxf5#
- 1...Bxe3+!
- threat
- 1.Se2?
- threat
- 2.Sg3#
- 2.Qxf5#
- 2.Qxd3#
- 1...Qxe5
- 2.Sg3#
- 2.Qxd3#
- 1...dxe2
- 2.Bb1#
- 2.Qxf5#
- 2.Qd3#
- 1...Qe1
- 2.Bd5#
- 2.Qxf5#
- 2.Qxd3#
- 2.Qd5#
- 1...Qd2
- 2.Sg3#
- 2.Bd5#
- 2.Qxf5#
- 2.Qd5#
- 1...Qc3
- 2.Sxc3#
- 2.Sg3#
- 2.Bd5#
- 2.Qxf5#
- 2.Qd5#
- 1...Qa3
- 2.Sg3#
- 2.Bd5#
- 2.Qxf5#
- 2.Qd5#
- 1...Qb5
- 2.Sc3#
- 2.Sg3#
- 2.Qxf5#
- 1...Qd5
- 2.Bxd5#
- 2.Qxf5#
- 2.Qxd5#
- 1...Qa6
- 2.Sc3#
- 2.Sg3#
- 2.Bd5#
- 2.Qxf5#
- 2.Qd5#
- 1...Bd4
- 2.Sg3#
- 2.Qxf5#
- 2.Qxd4#
- 1...d2
- 2.Sg3#
- 2.Bb1#
- 2.Qxf5#
- 1...Bxe3+!
- threat
- 1.Sb3?
- threat
- 2.Qxf5#
- 2.Qxd3#
- 1...Qxe5
- 2.Sd2#
- 2.Qxd3#
- 1...Qd2
- 2.Sxd2#
- 2.Qxf5#
- 2.Qd5#
- 1...Qc3
- 2.Qxf5#
- 2.Qd5#
- 1...Qb5
- 2.Sd2#
- 2.Qxf5#
- 1...Qd5
- 2.Qxf5#
- 2.Qxd5#
- 1...Qa6
- 2.Sd2#
- 2.Qxf5#
- 2.Qd5#
- 1...Bd4
- 2.Qxf5#
- 2.Qxd4#
- 1...d2
- 2.Bb1#
- 2.Qxf5#
- 1...Bxe3+!
- threat
- 1.Sdxf5?
- threat
- 2.Sg3#
- 2.Qxd3#
- 1...Qe1
- 2.Bd5#
- 2.Qxd3#
- 2.Qd5#
- 1...Qd2
- 2.Sg3#
- 2.Bd5#
- 2.Qd5#
- 1...Qc3
- 2.Sg3#
- 2.Bd5#
- 2.Qd5#
- 1...Qa3
- 2.Sg3#
- 2.Bd5#
- 2.Qd5#
- 1...Qb5
- 2.Sg3#
- 1...Qd5
- 2.Bxd5#
- 2.Qxd5#
- 1...Qa6
- 2.Sg3#
- 2.Bd5#
- 2.Qd5#
- 1...Bd4
- 2.Sg3#
- 2.Qxd4#
- 1...d2
- 2.Sg3#
- 2.Bb1#
- 1...Bxe3+!
- threat
- 1.Se6?
- threat
- 2.Sg5#
- 2.Qxd3#
- 1...Qd2
- 2.Sg5#
- 2.Bd5#
- 2.Qd5#
- 1...Qc3
- 2.Sg5#
- 2.Bd5#
- 2.Qd5#
- 1...Qa3
- 2.Sg5#
- 2.Bd5#
- 2.Qd5#
- 1...Qb5
- 2.Sg5#
- 1...Qd5
- 2.Bxd5#
- 2.Qxd5#
- 1...Qa6
- 2.Sg5#
- 2.Bd5#
- 2.Qd5#
- 1...Bd4
- 2.Sg5#
- 2.Qxd4#
- 1...d2
- 2.Sg5#
- 2.Bb1#
- 1...Bxe3+!
- threat
- 1.Bb1?
- threat
- 2.Bxd3#
- 1...Qd5
- 2.Qxd5#
- 1...Qd2
- 2.Qd5#
- 1...Qc3
- 2.Qd5#
- 1...Qa3
- 2.Qd5#
- 1...Qa6
- 2.Qd5#
- 1...Qb5!
- threat
- 1.Bd5+?
- 1...Qxd5
- 2.Qxd5#
- 1...Kxd4!
- 1...Qxd5
- 1.Be6?
- threat
- 2.Bxf5#
- 1...Qd5
- 2.Qxd5#
- 1...Qxe5!
- threat
- 1.Rde1?
- 1...Qxe1
- 2.Qd5#
- 1...Qxa2
- 2.Sec2#
- 1...Qxe5
- 2.Sd1#
- 2.Sec2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sexf5#
- 1...Bxd4
- 2.Qxf5#
- 1...Qd5
- 2.Sec2#
- 2.Sexf5#
- 2.Qxd5#
- 1...d2
- 2.Bb1#
- 1...Qb5
- 2.Sd1#
- 2.Sec2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sexf5#
- 1...Qd2
- 2.Qd5#
- 1...Qc3
- 2.Qd5#
- 1...Qb4
- 2.Qd5#
- 1...Qa3
- 2.Sd1#
- 2.Sec2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sexf5#
- 2.Qd5#
- 1...Qa4
- 2.Sd1#
- 2.Sec2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sexf5#
- 2.Qd5#
- 1...Qc5
- 2.Sd1#
- 2.Sec2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sexf5#
- 1...Qa6
- 2.Sd1#
- 2.Sec2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sexf5#
- 2.Qd5#
- 1...Qa7
- 2.Sd1#
- 2.Sec2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sexf5#
- 2.Qd5#
- 1...Qa8
- 2.Sd1#
- 2.Sec2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sexf5#
- 2.Qd5#
- 1...Bc5
- 2.Qd5#
- 1...Ba7!
- 1...Qxe1
- 1.Sexf5?
- Keys
- 1.Sec2!
- threat
- 2.Qxf5#
- 1...Bxd4+
- 2.Qxd4#
- 1...Qxa2
- 2.Rde1#
- 1...Qxe5
- 2.Rde1#
- threat
- 1.Sec2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(c);N_GUARD,P_PINR(B)::QAB1(J)
- Q(c);N_GUARD::QAB1(J)
- Q(c);N_GUARD::QAB1(J),XQ(c)
- B(e);P_PINS(E),SBLOCK,XS(F)::QAB1(J),XP(d)
- B(e);S_CUTQ(c)::QAB1(J)
- P(a);OGATEB::B(D)
- Tries
- Try
- S(E);P_SPINS(F),XP(d)
- Threat
- S(E)
- Vars
- P(a);OGATEB::B(D)
- Refutation
- B(e);CHECK,XS(F)
- Try
- S(F);P_SPINS(E)
- Threat
- DUALS(2)
- Vars
- Q(c);XP(H)::QAB1(J),XP(a)
- Q(c);::QAB1(J),XP(d)
- P(a);::QAB1(J),XP(d)
- Refutation
- B(e);CHECK,XS(E)
- Try
- S(F);P_SPINS(E)
- Threat
- DUALS(3)
- Refutation
- B(e);CHECK,XS(E)
- Try
- S(F);P_SPINS(E)
- Threat
- DUALS(2)
- Refutation
- B(e);CHECK,XS(E)
- Try
- S(F);P_SPINS(E),XP(d)
- Threat
- DUALS(2)
- Vars
- Q(c);::S(F)
- Refutation
- B(e);CHECK,XS(E)
- Try
- S(F);P_SPINS(E)
- Threat
- DUALS(2)
- Vars
- Q(c);::S(F)
- Refutation
- B(e);CHECK,XS(E)
- Try
- B(D);P_PINP(a)
- Threat
- B(D),XP(a)
- Vars
- Q(c);N_GUARD::QAB1(J),XQ(c)
- Q(c);N_GUARD::QAB1(J)
- Refutation
- Q(c);
- Try
- B(D);CHECK
- Vars
- Q(c);OGATE,XB(D)::QAB1(J),XQ(c)
- Refutation
- K(b);P-FLIGHT,P_SPINP(a),XS(F)
- Try
- B(D);
- Threat
- B(D),XP(d)
- Vars
- Q(c);N_GUARD::QAB1(J),XQ(c)
- Refutation
- Q(c);XP(H)
- Try
- R(A);
- Vars
- Q(c);N_GUARD,P_PINR(B),XR(A)::QAB1(J)
- Q(c);N_GUARD,XB(D)::R(A)+S(E)
- B(e);P_PINS(E),SBLOCK,XS(F)::QAB1(J),XP(d)
- P(a);OGATEB::B(D)
- Q(c);N_GUARD::QAB1(J)
- B(e);S_CUTQ(c)::QAB1(J)
- Refutation
- B(e);
- Try
- Actual
- S(E);P_SPINS(F)
- Threat
- QAB1(J),XP(d)
- Vars
- B(e);CHECK,OGATE,XS(F)::QAR1(J),XB(e)
- Q(c);N_GUARD,XB(D)::R(A)
- Q(c);N_GUARD,XP(H)::R(A)
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