MESON Chess Problem Database

Problem Display
PID: 67482 (1R1qk1N1/1N1p4/K4Rbr/b6n/2B5/2B5/2prp3/8 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Chess, 1948

1R1qk1N1/1N1p4/K4Rbr/b6n/2B5/2B5/2prp3/8

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6+
      • 2.Sxd6#
    • 1...Bxc3
      • 2.Rxd8#
    • 1...Bb4
      • 2.Rxd8#
    • 1...Bd3
      • 2.Sd6#
    • 1...d5
      • 2.Bb5#
    • 1...d6
      • 2.Bb5#
  • Tries
    • 1.Bxa5?
      • threat
        • 2.Rxd8#
      • 1...Rd6+
        • 2.Sxd6#
      • 1...Qc8
        • 2.Rxc8#
      • 1...Qxb8!
  • Keys
    • 1.Bb4!
      • threat
        • 2.Rf8#
      • 1...Rd6+
        • 2.Sxd6#
      • 1...Bxb4
        • 2.Rxd8#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...d5
        • 2.Bb5#
      • 1...d6
        • 2.Bb5#
      • 1...Bd3
        • 2.Sd6#
      • 1...Be4
        • 2.Bf7#
      • 1...Bf5
        • 2.Bf7#
      • 1...Bf7
        • 2.Bxf7#
      • 1...Bh7
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(b);CHECK,N_GUARD::S(E),XR(b)
    • B(d);N_GUARD,XB(A)::R1(F),XQ(i)
    • B(d);N_GUARD::R1(F),XQ(i)
    • B(f);P_PINB(B),P_PINR(D),S_CUTR(b)::S(E)
    • P(h);OGATEB::B(B)
  • Tries
    • Try
      • B(A);XB(d)
      • Threat
        • R1(F),XQ(i)
      • Vars
        • R(b);CHECK,N_GUARD::S(E),XR(b)
        • Q(i);OGATEB,P_PINS(E)::R(F),XQ(i)
      • Refutation
        • Q(i);N_SPINQ(i),XR(F)
  • Actual
    • B(A);
    • Threat
      • R1(D)
    • Vars
      • R(b);CHECK,N_GUARD::S(E),XR(b)
      • B(d);N_GUARD,XB(A)::R1(F),XQ(i)
      • S(e);XR(D)::S(G),XS(e)
      • P(h);OGATEB::B(B)
      • B(f);P_PINB(B),P_PINR(D),S_CUTR(b)::S(E)
      • B(f);N_GUARD,P_PINR(D)::B(B)
      • B(f);N_GUARD,P_PINR(D)::B(B),XB(f)
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