MESON Chess Problem Database

Problem Display
PID: 54561 (4b3/4pp1Q/4Pk2/1p5p/P2NP1pq/5P2/BN1P4/B2Kb3 w - - 0 1)

Kopaev, Viacheslav Georgievich

Schach, 1995

4b3/4pp1Q/4Pk2/1p5p/P2NP1pq/5P2/BN1P4/B2Kb3

#2

11 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qh6#
      • 1...Kg5
        • 2.Qg7#
      • 1...fxe6
        • 2.Sxe6#
      • 1...Qg5
        • 2.Sf5#
      • 1...Bxd2!
    • 1.f4?
      • threat
        • 2.Qh6#
        • 2.e5#
      • 1...fxe6
        • 2.e5#
      • 1...Qg5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qg7#
      • 1...Ke5
        • 2.Sd3#
      • 1...Kg5
        • 2.Qh6#
      • 1...Qg5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR2(K)
      • Vars
        • K(f);S_FLIGHT::QAR2(K)
        • P(h);XP(J)::B(A)+S(H),XP(h)
        • Q(c);SBLOCK::B(A)+S(H)
      • Refutation
        • B(a);XP(E)
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);XP(J)::P(I)
      • Refutation
        • Q(c);
  • Actual
    • S(H);
    • Threat
      • QAB1(K)
    • Vars
      • K(f);S_FLIGHT::B(A)+S(D),DCHECK
      • K(f);S_FLIGHT::QAB1(K)
      • Q(c);SBLOCK::B(A)+S(D)
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