MESON Chess Problem Database

Problem Display
PID: 63629 (7Q/5p2/5r2/K4p2/N4P2/R7/r7/k4B2 w - - 0 1)

Ellison, Wallace D

Chess, 1946

7Q/5p2/5r2/K4p2/N4P2/R7/r7/k4B2

#2

6 + 5

SOLUTION

  • SOUND
  • Keys
    • 1.Qh1!
      • threat
        • 2.Be2#
        • 2.Bg2#
        • 2.Bd3#
        • 2.Bh3#
        • 2.Bc4#
        • 2.Bb5#
        • 2.Ba6#
      • 1...Ra6+
        • 2.Bxa6#
      • 1...Kb1
        • 2.Bd3#
      • 1...Rxa3
        • 2.Bc4#
      • 1...Rb6
        • 2.Bb5#
      • 1...Rc6
        • 2.Bc4#
      • 1...Rd6
        • 2.Bd3#
      • 1...Re6
        • 2.Be2#
      • 1...Rg6
        • 2.Bg2#
      • 1...Rh6
        • 2.Bh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(F);
    • Threat
      • DUALS(7)
    • Vars
      • R(d);CHECK::QAR(F)+B(A),XR(d)
      • K(a);N_SPINR(b),P-FLIGHT::QAR(F)+B(A),DCHECK
      • R(b);N_SPINR(b),P_PINS(C),XR(B)::QAR(F)+B(A)
      • R(d);::QAR(F)+B(A)
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