MESON Chess Problem Database

Problem Display
PID: 7353 (8/8/2p5/2N1kpR1/2P5/4N3/Q6K/2B1R3 w - - 0 1)

Cozzolino, Gennaro

StrateGems, 1999

8/8/2p5/2N1kpR1/2P5/4N3/Q6K/2B1R3

#2

8 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Rxf5#
  • Tries
    • 1.Bb2+?
      • 1...Kf4
        • 2.Rxf5#
      • 1...Kd6!
    • 1.Rd1?
      • threat
        • 2.Sg4#
        • 2.Rxf5#
      • 1...Kf4
        • 2.Rxf5#
      • 1...Kf6!
    • 1.Rxf5+?
      • 1...Kd4
        • 2.Bb2#
        • 2.Qa1#
        • 2.Qb2#
        • 2.Qd2#
      • 1...Kd6!
    • 1.Qa1+?
      • 1...Kf4
        • 2.Rxf5#
      • 1...Kd6!
    • 1.Qb2+?
      • 1...Kf4
        • 2.Rxf5#
      • 1...Kd6!
    • 1.Qd2?
      • threat
        • 2.Sg4#
        • 2.Rxf5#
      • 1...Kf4
        • 2.Rxf5#
      • 1...Kf6!
    • 1.Qa5?
      • 1...Kd4
        • 2.Bb2#
      • 1...Kf4
        • 2.Rxf5#
      • 1...Kd6
        • 2.Sxf5#
      • 1...Kf6!
  • Keys
    • 1.Qa7!
      • 1...Kd4
        • 2.Bb2#
      • 1...Kf4
        • 2.Rxf5#
      • 1...Kd6
        • 2.Sxf5#
      • 1...Kf6
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(b),S_FLIGHT::R1(H),XP(b)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::R1(H),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::R1(H),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • R(H);CHECK,XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::R1(H),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::R1(H),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::R1(H),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::B(A)
        • K(a);N_SPINP(b),S_FLIGHT::R1(H),XP(b)
        • K(a);N_SPINP(b),S_FLIGHT::S(E),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);N_SPINP(b),S_FLIGHT::B(A)
      • K(a);N_SPINP(b),S_FLIGHT::R1(H),XP(b)
      • K(a);N_SPINP(b),S_FLIGHT::S(E),XP(b)
      • K(a);N_SPINP(b),S_FLIGHT::QAB1(C)
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