MESON Chess Problem Database

Problem Display
PID: 74565 (Q1n2N1k/2BRn2P/K2pP1b1/5p2/8/8/8/8 w - - 0 1)

Knott, Hubert Edward

Chess Amateur (The), 1910

Q1n2N1k/2BRn2P/K2pP1b1/5p2/8/8/8/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Sxg6#
    • 1...Sc6
      • 2.Sxg6#
    • 1...Sg8
      • 2.Sxg6#
    • 1...d5
      • 2.Be5#
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qa1#
      • 1...Kg7
        • 2.h8Q#
      • 1...Bxh7
        • 2.Qxh7#
      • 1...Sd5
        • 2.Sxg6#
      • 1...Sc6
        • 2.Sxg6#
      • 1...Sg8
        • 2.Sxg6#
      • 1...d5
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::S(G),XB(c)
    • P(b);OGATE::B(C)
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • K(f);OGATE,P_SPINS(d),S_FLIGHT::P=Q
      • B(c);OGATE,P_SPINB(c),XP(E)::QAR1(F),XB(c)
      • S(d);N_GUARD::S(G),XB(c)
      • P(b);OGATE::B(C)
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