MESON Chess Problem Database

Problem Display
PID: 58216 (2N5/8/8/1P1pk1K1/1Q2p3/8/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Scacco!, 1997

2N5/8/8/1P1pk1K1/1Q2p3/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qe7#
    • 1...d4
      • 2.Qd6#
  • Tries
    • 1.Qa3?
      • 1...Ke6
        • 2.Qe7#
      • 1...e3
        • 2.Qxe3#
      • 1...d4
        • 2.Qd6#
      • 1...Kd4!
    • 1.b6?
      • 1...Ke6
        • 2.Qe7#
      • 1...d4
        • 2.Qd6#
      • 1...e3!
  • Keys
    • 1.Qc5!
      • 1...Ke6
        • 2.Qe7#
      • 1...e3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT::QAR1(A)
    • P(b);::QAB1(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • P(a);OGATEB::QAR2(A),XP(a)
        • P(b);::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(B);
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • P(b);::QAB1(A)
      • Refutation
        • P(a);
  • Actual
    • Q(A);P_PINP(b)
    • Vars
      • K(c);N_SPINP(b),P-FLIGHT::QAR1(A)
      • P(a);OGATEB::QAR2(A),XP(a)
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