MESON Chess Problem Database

Problem Display
PID: 62892 (3n4/1n1R4/B1pb4/2N3Q1/pRrk1p2/K1N1q2r/bP4p1/6B1 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Chess, 1944

3n4/1n1R4/B1pb4/2N3Q1/pRrk1p2/K1N1q2r/bP4p1/6B1

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Rxc4#
    • 1...Bb3
      • 2.Se2#
    • 1...Sa5
      • 2.Rxd6#
    • 1...Sxc5
      • 2.Rxd6#
    • 1...f3
      • 2.Bxe3#
      • 2.Qxe3#
  • Keys
    • 1.Rb3!
      • threat
        • 2.Se2#
      • 1...Rxc3
        • 2.bxc3#
      • 1...Rxc5
        • 2.Qxf4#
      • 1...Sxc5
        • 2.Rxd6#
      • 1...f3
        • 2.Bxe3#
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::R1(E),XR(f)
    • B(a);N_PINS(D)::S(D)
    • S(k);N_GUARD::R(I),XB(j)
    • S(k);N_GUARD,XS(F)::R(I),XB(j)
  • Actual
    • R(E);N_PINR(f),N_SPINS(D),P_SPINS(F)
    • Threat
      • S(D)
    • Vars
      • R(f);OGATE,P_PINR(E),XS(D)::P(B),XR(f)
      • R(f);SBLOCK,XS(F)::QAR2(G),XP(h)
      • S(k);N_GUARD,XS(F)::R(I),XB(j)
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