MESON Chess Problem Database

Problem Display
PID: 35221 (2B5/6B1/8/K1p5/8/pk6/7Q/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

1st Prize, Vecherni Magadan, 1994

2B5/6B1/8/K1p5/8/pk6/7Q/8

#2

4 + 3

3705 Album Russia (1992-1994) 2000
3681 FIDE Album (1992-1994) 2001
4883 Still More Fun with Chess Miniatures 2002
3713 Snap 2005

SOLUTION

  • SOUND
  • Tries
    • 1.Kb5?
      • 1...a2
        • 2.Qb2#
      • 1...c4!
    • 1.Bf5?
      • threat
        • 2.Qc2#
      • 1...Kc4
        • 2.Qa2#
      • 1...a2!
    • 1.Ba6?
      • 1...a2
        • 2.Qb2#
      • 1...c4!
    • 1.Qd2?
      • 1...Kc4
        • 2.Be6#
      • 1...a2
        • 2.Qc3#
        • 2.Qd3#
      • 1...c4!
    • 1.Qe2?
      • 1...a2
        • 2.Qd3#
      • 1...c4!
  • Keys
    • 1.Qh7!
      • 1...Ka2
        • 2.Qc2#
      • 1...Kc4
        • 2.Be6#
      • 1...c4
        • 2.Qb1#
      • 1...a2
        • 2.Qd3#

This anticipates 56639(1994)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(a);N_GUARD::QAR1(A)
      • Refutation
        • P(c);
    • Try
      • B(D);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • P(a);
    • Try
      • B(D);
      • Vars
        • P(a);N_GUARD::QAR1(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Vars
        • P(a);SBLOCK::QAR2(A)
      • Refutation
        • P(c);
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::QAR2(A)
      • K(b);S_FLIGHT::B(D)
      • P(c);SBLOCK::QAR2(A)
      • P(a);SBLOCK::QAR2(A)
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