MESON Chess Problem Database

Problem Display
PID: 245602 (7r/1PpkB1N1/8/2P3Kp/b1P5/5Qp1/8/8 w - - 0 1)

Kisis, Imants J

Schweizerische Schachzeitung, 1993

7r/1PpkB1N1/8/2P3Kp/b1P5/5Qp1/8/8

#2

7 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Bf6?
      • threat
        • 2.Qd5#
      • 1...Bc6
        • 2.Qf5#
      • 1...c6!
    • 1.Qd3+?
      • 1...Kc6
        • 2.Qd5#
      • 1...Kxe7!
    • 1.Qf5+?
      • 1...Kc6
        • 2.Qd5#
      • 1...Kxe7!
    • 1.Qf6?
      • threat
        • 2.Qe6#
      • 1...c6
        • 2.Qd6#
      • 1...Rh6!
    • 1.c6+?
      • 1...Kxe7
        • 2.Qf6#
      • 1...Bxc6!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qe6#
      • 1...Kc6
        • 2.Qd5#
      • 1...Rh6
        • 2.Qe8#
      • 1...c6
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);
      • Threat
        • QAR2(A)
      • Vars
        • B(b);SBLOCK::QAB(A)
      • Refutation
        • P(d);
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(A)
      • Refutation
        • K(e);P-FLIGHT,XB(F)
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(A)
      • Refutation
        • K(e);P-FLIGHT,XB(F)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(d);N_GUARD::QAR1(A)
      • Refutation
        • R(f);
    • Try
      • P(C);CHECK
      • Vars
        • K(e);P-FLIGHT,XB(F)::QAB1(A)
      • Refutation
        • B(b);XP(C)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(e);S_FLIGHT::QAB1(A)
      • R(f);N_GUARD::QAB1(A)
      • P(d);SBLOCK::QAR(A)+B(F)
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