MESON Chess Problem Database

Problem Display
PID: 48019 (3B4/8/5p2/4Pk2/5N2/6K1/8/4Q3 w - - 0 1)

Kovalenko, Vitaly Semenovich

Uralski Problemist, 1997

3B4/8/5p2/4Pk2/5N2/6K1/8/4Q3

#2

5 + 2

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Kf3?
      • 1...fxe5
        • 2.Qe4#
      • 1...Kg5!
    • 1.Bc7?
      • 1...fxe5
        • 2.Qxe5#
      • 1...Kg5!
    • 1.Qb1+?
      • 1...Kg5
        • 2.Qg6#
      • 1...Kxe5!
    • 1.Qe2?
      • 1...Kg5
        • 2.Qh5#
      • 1...fxe5!
    • 1.Qe4+?
      • 1...Kg5
        • 2.Qg6#
      • 1...Kxe4!
  • Keys
    • 1.Qh1!
      • 1...Kxe5
        • 2.Qd5#
      • 1...Kg5
        • 2.Qh5#
      • 1...fxe5
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(b);XP(D)::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • B(E);
      • Vars
        • P(b);OGATE,XP(D)::QAR1(A),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT,P_SPINP(b)::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAR1(A)
      • Refutation
        • P(b);XP(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT,P_SPINP(b)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(D)::QAR1(A)
      • K(a);P-FLIGHT,P_SPINP(b)::QAR1(A)
      • P(b);SBLOCK,XP(D)::QAB(A)
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