MESON Chess Problem Database

Problem Display
PID: 259421 (7B/3R3n/5Pp1/3BkrqR/4pNQ1/2n3p1/4N1P1/5K2 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Western Morning News, 1924

(First published on Wed Jul 2 1924)

7B/3R3n/5Pp1/3BkrqR/4pNQ1/2n3p1/4N1P1/5K2

#2

10 + 8

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf4+
      • 2.Qxf4#
    • 1...Rxf4+
      • 2.Qxf4#
    • 1...Rxf6
      • 2.Qe6#
    • 1...Sxd5
      • 2.Rxd5#
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qxc3#
      • 1...Qxf4
        • 2.Qxf4#
      • 1...Rxf4
        • 2.Qxf4#
      • 1...Rxf6
        • 2.Sxg6#
      • 1...Sxe2
        • 2.Qxe4#
      • 1...Sxd5
        • 2.Rxd5#
      • 1...exf3
        • 2.Sd3#
      • 1...Sb1
        • 2.Qxe4#
      • 1...Sd1
        • 2.Qxe4#
      • 1...Sa2
        • 2.Qxe4#
      • 1...Sa4
        • 2.Qxe4#
      • 1...Sb5
        • 2.Qxe4#
      • 1...e3
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • Q(f);CHECK,OGATE,P_SPINR(e),XS(D)::QAB1(E),XQ(f)
    • R(e);CHECK,OGATE,P_SPINQ(f),XS(D)::QAB1(E),XR(e)
    • R(e);OGATE,P_SPINQ(f),P_SPINR(e),XP(H)::QAR1(E)
    • S(a);OGATE,XB(F)::R1(I),XS(a)
  • Actual
    • Q(E);N_SPINS(D)
    • Threat
      • QAB(E),XS(a)
    • Vars
      • Q(f);OGATE,P_PINQ(E),P_SPINR(e),XS(D)::QAB1(E),XQ(f)
      • R(e);OGATE,P_PINQ(E),P_SPINQ(f),XS(D)::QAB1(E),XR(e)
      • R(e);P_SPINQ(f),P_SPINR(e),XP(H)::S(D),XP(g)
      • S(a);N_GUARD,XS(B)::QAR1(E),XP(c)
      • S(a);OGATE,XB(F)::R1(I),XS(a)
      • P(c);N_GUARD,XQ(E)::S(D)
      • S(a);N_GUARD::QAR1(E),XP(c)
      • P(c);N_GUARD::S(D)
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