MESON Chess Problem Database

Problem Display
PID: 162215 (8/8/2B2n2/p2p3r/Nk3q1R/4N1B1/PP6/R3K3 w Q - 0 1)

Ouellet, Charles

The Problemist, 2015

8/8/2B2n2/p2p3r/Nk3q1R/4N1B1/PP6/R3K3

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Sc2#
      • 2.Bd6#
    • 1...Qd4
      • 2.Bd6#
      • 2.Rxd4#
    • 1...Qe4
      • 2.Bd6#
    • 1...Qg4
      • 2.Bd6#
  • Tries
    • 1.Rxf4+?
      • 1...d4
        • 2.Rxd4#
      • 1...Se4!
    • 1.b3?
      • threat
        • 2.Sc2#
      • 1...Ka3
        • 2.Sc2#
      • 1...Qe4
        • 2.Bd6#
      • 1...Re5!
  • Keys
    • 1.0-0-0!
      • threat
        • 2.Be1#
      • 1...Qc4+
        • 2.Sc2#
      • 1...Qxh4
        • 2.Bd6#
      • 1...Se4
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(b);OGATE,P_PINS(E)::B(F)
    • Q(b);OGATE::B(F)
  • Tries
    • Try
      • R(H);CHECK,XQ(b)
      • Vars
        • P(d);P_SPINP(d)::R(H),XP(d)
      • Refutation
        • S(f);P_SPINS(f)
    • Try
      • P(D);
      • Threat
        • S(E)
      • Vars
        • K(a);N_SPINQ(b),S_FLIGHT::S(E)
        • Q(b);OGATE,P_PINS(E)::B(F)
      • Refutation
        • R(e);P_PINS(E)
  • Actual
    • K(B);0-0-0,P_SPINS(E)
    • Threat
      • B(F)
    • Vars
      • Q(b);CHECK,N_PINS(E)::S(E)
      • Q(b);N_PINS(E),N_SPINQ(b),OGATE,XR(H)::B(F)
      • S(f);N_SPINQ(b),S_CUTQ(b)::R(A)
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