MESON Chess Problem Database

Problem Display
PID: 67823 (N7/1pQn4/NPb1r3/p2kP3/P2P4/5R2/2B4p/B2R3K w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Chess, 1948

N7/1pQn4/NPb1r3/p2kP3/P2P4/5R2/2B4p/B2R3K

#2

12 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Bb3#
    • 1...Sxb6
      • 2.Sxb6#
  • Tries
    • 1.Be4+?
      • 1...Kc4
        • 2.Rc1#
        • 2.Rc3#
      • 1...Kxe4!
    • 1.Qd6+?
      • 1...Kc4
        • 2.Bb3#
      • 1...Rxd6!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Bb3#
      • 1...Kc4+
        • 2.d5#
      • 1...Bxa4
        • 2.Be4#
      • 1...Sxe5
        • 2.dxe5#
      • 1...Sxb6
        • 2.Sxb6#
      • 1...Bb5
        • 2.Be4#
      • 1...Sc5
        • 2.dxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);P_PINR(E),P_SPINB(d),S_FLIGHT::B(D)
    • S(g);XP(J)::S(L),XS(g)
  • Tries
    • Try
      • B(D);CHECK
      • Refutation
        • K(c);S_FLIGHT,XB(D)
    • Try
      • Q(K);CHECK
      • Vars
        • K(c);P_PINR(E),S_FLIGHT::B(D)
      • Refutation
        • R(e);XQ(K)
  • Actual
    • R(E);
    • Threat
      • B(D)
    • Vars
      • K(c);CHECK,OGATE,P_SPINB(d),S_FLIGHT::R(E)+P(G)
      • B(d);XP(F)::B(D)
      • S(g);OGATE,XP(H)::R(B)+P(G),XS(g)
      • S(g);XP(J)::S(L),XS(g)
      • B(d);::B(D)
      • S(g);OGATE::R(B)+P(G),XS(g)
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