MESON Chess Problem Database

Problem Display
PID: 254903 (8/NkB5/4N3/p3K3/Q7/8/8/8 w - - 0 1)

Klipachev, Vladimir Panteleevich

Zadachi i Etyudi, 2006

8/NkB5/4N3/p3K3/Q7/8/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sc8?
      • 1...Ka6
        • 2.Sc5#
        • 2.Qc6#
      • 1...Ka8
        • 2.Qc6#
        • 2.Qe4#
      • 1...Kxc8!
    • 1.Qb3+?
      • 1...Ka6
        • 2.Qb6#
      • 1...Ka8
        • 2.Qb8#
      • 1...Kxa7!
    • 1.Qb5+?
      • 1...Ka8
        • 2.Qb8#
      • 1...Kxa7!
  • Keys
    • 1.Sb5!
      • 1...Ka6
        • 2.Sc5#
      • 1...Kc6
        • 2.Sd6#
      • 1...Ka8
        • 2.Qe4#
      • 1...Kc8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Refutation
        • K(b);S_FLIGHT,XS(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAR1(A)
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XS(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Vars
      • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::S(C)
      • K(b);N_GUARD,S_FLIGHT::QAB(A)+S(D)
      • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAB(A)
      • K(b);N_GUARD,S_FLIGHT::S(D)
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