MESON Chess Problem Database

Problem Display
PID: 259508 (b7/RR1N4/1q4r1/1kpPn3/5pr1/pBPp4/P6p/1Q4bK w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Western Morning News, 1924

(First published on Sat Sep 27 1924)

b7/RR1N4/1q4r1/1kpPn3/5pr1/pBPp4/P6p/1Q4bK

#2

9 + 12

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.Rxb6#
    • 1...Rg7
      • 2.Rxb6#
    • 1...Rg8
      • 2.Rxb6#
    • 1...Sc4
      • 2.Ba4#
    • 1...Sc6
      • 2.Rxb6#
    • 1...c4
      • 2.Bd1#
      • 2.Bc2#
      • 2.Ba4#
  • Tries
    • 1.Sxe5?
      • threat
        • 2.Bd1#
        • 2.Bc2#
        • 2.Ba4#
        • 2.Bc4#
      • 1...Rg2
        • 2.Bc2#
        • 2.Ba4#
        • 2.Bc4#
      • 1...f3
        • 2.Ba4#
        • 2.Bc4#
      • 1...c4!
    • 1.Qxd3+?
      • 1...Sc4
        • 2.Ba4#
        • 2.Bxc4#
        • 2.Qxc4#
      • 1...c4
        • 2.Ba4#
      • 1...Sxd3!
    • 1.c4+?
      • 1...Sxc4
        • 2.Ba4#
      • 1...Kb4!
  • Keys
    • 1.d6!
      • threat
        • 2.Bd5#
      • 1...Kc6
        • 2.Rxb6#
      • 1...Rg2
        • 2.Rxb6#
      • 1...Sc4
        • 2.Ba4#
      • 1...Sc6
        • 2.Rxb6#
      • 1...f3
        • 2.Rxb6#
      • 1...c4
        • 2.Ba4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(k);N_GUARD::R1(H),XQ(j)
    • S(i);SBLOCK::QAR(A)+B(D),DCHECK
    • S(i);S_CUTR(k)::R1(H),XQ(j)
  • Tries
    • Try
      • S(I);XS(i)
      • Threat
        • DUALS(4)
      • Refutation
        • P(h);
    • Try
      • Q(A);CHECK,XP(d)
      • Vars
        • P(h);P_SPINP(h)::B(D)
      • Refutation
        • S(i);XQ(A)
    • Try
      • P(E);CHECK
      • Vars
        • S(i);SBLOCK,XP(E)::QAR(A)+B(D),DCHECK
      • Refutation
        • K(g);P-FLIGHT
  • Actual
    • P(F);P_SPINR(H)
    • Threat
      • QAR(A)+B(D)
    • Vars
      • K(g);N_PINR(H),N_SPINQ(j),S_FLIGHT::R1(H),XQ(j)
      • R(f);N_PINR(H)::R1(H),XQ(j)
      • S(i);SBLOCK::QAR(A)+B(D),DCHECK
      • S(i);N_PINR(H)::R1(H),XQ(j)
      • P(e);N_PINR(H)::R1(H),XQ(j)
      • P(h);SBLOCK::QAR(A)+B(D),DCHECK
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