MESON Chess Problem Database

Problem Display
PID: 23023 (8/8/8/q1p5/p1Q5/k7/8/K2N4 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Segodiya zavtra, 1998

8/8/8/q1p5/p1Q5/k7/8/K2N4

#2

3 + 4

2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3+
      • 2.Qxc3#
    • 1...Qb4
      • 2.Qa2#
    • 1...Qc7
      • 2.Qc3#
    • 1...Qd8
      • 2.Qc3#
    • 1...Qa6
      • 2.Qc3#
    • 1...Qa7
      • 2.Qc3#
    • 1...Qa8
      • 2.Qc3#
  • Tries
    • 1.Qd3+?
      • 1...Qc3+
        • 2.Qxc3#
      • 1...Kb4!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Sb1#
      • 1...Qxc3+
        • 2.Qxc3#
      • 1...Qb4
        • 2.Qa2#
      • 1...Qb6
        • 2.Qxa4#
      • 1...Qb5
        • 2.Sxb5#

This anticipates 279745(2001)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(c);CHECK,N_GUARD::QAR2(C),XQ(c)
    • Q(c);SBLOCK::QAR1(C)
    • Q(c);N_GUARD::QAR2(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • Q(c);CHECK,N_GUARD,P_SPINQ(c)::QAR2(C),XQ(c)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • Q(c);CHECK,OGATE,XS(B)::QAR2(C),XQ(c)
      • Q(c);SBLOCK::QAR1(C)
      • Q(c);N_GUARD::QAR1(C),XP(b)
      • Q(c);N_GUARD::S(B),XQ(c)
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