MESON Chess Problem Database

Problem Display
PID: 233025 (8/1K2p1B1/1N1k4/8/8/2n5/8/6Q1 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2010

8/1K2p1B1/1N1k4/8/8/2n5/8/6Q1

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qg6#
  • Tries
    • 1.Qd4+?
      • 1...Sd5
        • 2.Qxd5#
      • 1...Ke6!
    • 1.Qg3+?
      • 1...Ke6
        • 2.Qg6#
      • 1...e5
        • 2.Qxe5#
      • 1...Kc5!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qe5#
      • 1...Ke6
        • 2.Qg6#
      • 1...Sd5
        • 2.Qxd5#
      • 1...e5
        • 2.Qxe5#
      • 1...e6
        • 2.Bf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(A),XS(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • P(c);P_SPINP(c)::QAB1(A),XP(c)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);P-FLIGHT::QAR2(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
      • P(c);::QAB1(A),XP(c)
      • P(c);OGATEB,SBLOCK::B(D)
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