MESON Chess Problem Database

Problem Display
PID: 72195 (K7/1p2N3/8/B2R3p/2k3qR/8/P1p1n3/2nb1Q2 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Chess, 1952

K7/1p2N3/8/B2R3p/2k3qR/8/P1p1n3/2nb1Q2

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Rhxd4#
    • 1...Qe4
      • 2.Rxe4#
    • 1...Qf4
      • 2.Rxf4#
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qc8#
      • 1...Sxa2
        • 2.Qd3#
      • 1...Qd4
        • 2.Rc5#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sd4
        • 2.Rc5#
      • 1...Sf4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • Q(f);OGATE::R1(C),XQ(f)
    • Q(f);OGATE::R(C),XQ(f)
  • Actual
    • Q(A);N_PINS(d)
    • Threat
      • QAR(A)
    • Vars
      • S(a);N_GUARD,XP(B)::QAB1(A)
      • Q(f);::R1(E)
      • S(a);N_GUARD::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • S(d);N_SPINQ(f),SBLOCK::R1(E)
      • S(d);N_GUARD,N_SPINQ(f),S_CUTQ(f)::QAR2(A)
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