MESON Chess Problem Database

Problem Display
PID: 232997 (K5Q1/8/2N1p3/1k6/1N6/1R6/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2004

K5Q1/8/2N1p3/1k6/1N6/1R6/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3+?
      • 1...Ka4
        • 2.Sc5#
      • 1...Kc4
        • 2.Qxe6#
      • 1...Ka6
        • 2.Sc5#
        • 2.Qc8#
      • 1...Kxc6!
  • Keys
    • 1.Sa6+!
      • 1...Ka4
        • 2.Sc5#
      • 1...Kc4
        • 2.Qxe6#
      • 1...Kxa6
        • 2.Qc8#
      • 1...Kxc6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::S(B)
        • K(a);P_SPINP(b),S_FLIGHT::QAB(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • S(B);CHECK
    • Vars
      • K(a);S_FLIGHT::S(B)
      • K(a);P_SPINP(b),S_FLIGHT::QAB(E),XP(b)
      • K(a);S_FLIGHT,XS(B)::QAB(E)
      • K(a);S_FLIGHT,XS(C)::QAR2(E),XP(b)
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