MESON Chess Problem Database

Problem Display
PID: 12035 (4n2q/2b5/B1R3bp/4pp2/2Q5/1N2k3/6K1/8 w - - 0 1)

Kuligin, Nikolai Volodimirovich

1st HM., BCF 137. Ty., 1974-1975

4n2q/2b5/B1R3bp/4pp2/2Q5/1N2k3/6K1/8

#2

5 + 8

3242 BCPS Rapid Solving (Cheltenham) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Qc1#
    • 1...f4
      • 2.Qe2#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Sf1#
      • 1...Kxd2
        • 2.Qe2#
        • 2.Qc1#
      • 1...e4!
    • 1.Re6?
      • threat
        • 2.Qd4#
      • 1...e4
        • 2.Qc1#
      • 1...Bb6!
    • 1.Qf1?
      • threat
        • 2.Qf3#
      • 1...Ke4
        • 2.Qf3#
      • 1...e4
        • 2.Qc1#
        • 2.Qf2#
      • 1...Bh5!
    • 1.Qc3+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kf4!
    • 1.Qh4?
      • threat
        • 2.Rc3#
      • 1...f4
        • 2.Qe1#
      • 1...e4
        • 2.Qf2#
      • 1...Ba5!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Rc3#
      • 1...e4
        • 2.Qd2#
      • 1...f4
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAB(C)
    • P(c);SBLOCK::QAR1(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Refutation
        • P(b);
    • Try
      • R(E);P_PINP(b)
      • Threat
        • QAB1(C)
      • Vars
        • P(b);::QAB(C)
      • Refutation
        • B(f);
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
      • Refutation
        • B(d);
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • R(E)
      • Vars
        • P(c);SBLOCK::QAR2(C)
        • P(b);SBLOCK::QAB1(C)
      • Refutation
        • B(f);
  • Actual
    • Q(C);
    • Threat
      • R(E)
    • Vars
      • P(b);SBLOCK::QAB1(C)
      • P(c);SBLOCK::QAR2(C)
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