MESON Chess Problem Database

Problem Display
PID: 187006 (2K2b2/2B2N2/p2p4/r4p2/r1kP1R2/PpNp4/1P4B1/8 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Hume, George

The Observer, 1934

(First published on Sun Feb 25 1934)

2K2b2/2B2N2/p2p4/r4p2/r1kP1R2/PpNp4/1P4B1/8

#2

9 + 9

15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.d5#
    • 1...Rd5
      • 2.Bxd5#
    • 1...Bh6
      • 2.Sxd6#
    • 1...Bg7
      • 2.Sxd6#
    • 1...d2
      • 2.Bf1#
    • 1...d5
      • 2.Se5#
  • Tries
    • 1.Bxa5?
      • threat
        • 2.Bd5#
      • 1...d2
        • 2.Bf1#
      • 1...d5
        • 2.Se5#
        • 2.Bxd5#
      • 1...Rxa5!
  • Keys
    • 1.Bb6!
      • threat
        • 2.d5#
      • 1...Rc5+
        • 2.dxc5#
      • 1...d2
        • 2.Bf1#
      • 1...Rd5
        • 2.Bxd5#
      • 1...Re5
        • 2.dxe5#
      • 1...Bh6
        • 2.Sxd6#
      • 1...Bg7
        • 2.Sxd6#
      • 1...d5
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(e);P_PINB(G),SBLOCK::R(F)+P(E)
    • R(e);N_GUARD::B(B),XR(e)
    • B(i);N_GUARD::S(H),XP(h)
    • P(b);OGATEB::B(B)
    • P(h);N_GUARD,S_CUTR(e)::S(H)
  • Tries
    • Try
      • B(G);XR(e)
      • Threat
        • B(B)
      • Vars
        • P(b);OGATEB::B(B)
      • Refutation
        • R(c);XB(G)
  • Actual
    • B(G);
    • Threat
      • R(F)+P(E)
    • Vars
      • R(e);CHECK,OGATE::R(F)+P(E),XR(e)
      • P(b);OGATEB::B(B)
      • R(e);N_GUARD::B(B),XR(e)
      • R(e);OGATE::R(F)+P(E),XR(e)
      • B(i);N_GUARD::S(H),XP(h)
      • P(h);N_GUARD,S_CUTR(e)::S(H)
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