MESON Chess Problem Database

Problem Display
PID: 15364 (8/5K2/6pk/7b/7R/8/8/7Q w - - 0 1)

Samilo, Volodimir Grigorovich

HM., Vecherni Kharkov, 1982

8/5K2/6pk/7b/7R/8/8/7Q

#2

3 + 3

3296 Shakhmatny zadachi miniaturi 1987
3713 Snap 2008

SOLUTION

  • SOUND
  • Sets
    • 1...g5+
      • 2.Rxh5#
  • Tries
    • 1.Kf6?
      • 1...g5
        • 2.Rxh5#
      • 1...Kh7!
    • 1.Kg8?
      • 1...g5
        • 2.Qc6#
      • 1...Kg5!
    • 1.Qf3?
      • 1...g5+
        • 2.Rxh5#
        • 2.Qxh5#
      • 1...Kg5
        • 2.Qf4#
      • 1...Kh7!
    • 1.Qb1?
      • threat
        • 2.Qxg6#
      • 1...g5+
        • 2.Qg6#
      • 1...Kh7
        • 2.Rxh5#
      • 1...Kg5!
    • 1.Qh2?
      • 1...g5+
        • 2.Rxh5#
      • 1...Kg5
        • 2.Qf4#
      • 1...Kh7!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qxg6#
      • 1...g5+
        • 2.Qg6#
      • 1...Kg5
        • 2.Qf4#
      • 1...Kh7
        • 2.Rxh5#

Anticipated by 76798(1945)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);CHECK,N_GUARD::R1(B),XB(a)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(b);N_GUARD::R1(B),XB(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(C);S_FLIGHT
      • Vars
        • P(b);OGATEB,SBLOCK::QAR(A)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);N_SPINB(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • P(b);CHECK::QAR1(A)
        • K(c);P-FLIGHT,P_SPINP(b)::R(B),XB(a)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);CHECK,N_GUARD::R1(B),XB(a)
        • K(c);N_SPINB(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XP(b)
    • Vars
      • P(b);CHECK::QAR1(A)
      • K(c);N_SPINB(a),S_FLIGHT::QAB1(A)
      • K(c);P-FLIGHT,P_SPINP(b)::R(B),XB(a)
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Developed and maintained by Brian Stephenson.
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