MESON Chess Problem Database

Problem Display
PID: 182438 (2R2R2/8/4N3/3pN3/B3p3/1rB4K/b1kP2pp/4Q1br w - - 0 1)

Taylor, A

Problem Observer, 2014

2R2R2/8/4N3/3pN3/B3p3/1rB4K/b1kP2pp/4Q1br

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.Bd4#
    • 1...Bd4
      • 2.Sxd4#
    • 1...e3
      • 2.Sd4#
      • 2.Ba1#
      • 2.Bd4#
  • Tries
    • 1.Rf2?
      • threat
        • 2.Sd4#
      • 1...d4
        • 2.Sxd4#
      • 1...Bxf2!
  • Keys
    • 1.d4!
      • 1...Bxd4
        • 2.Sxd4#
      • 1...exd4 ep
        • 2.Bd4#
      • 1...Bf2
        • 2.Rxf2#
      • 1...Be3
        • 2.Ba1#
      • 1...Bb1
        • 2.Qd2#
      • 1...e3
        • 2.Ba1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(a);N_PINB(C)::R(H)+B(C)
    • B(a);N_GUARD::S(G),XB(a)
  • Tries
    • Try
      • R(I);
      • Threat
        • S(G)
      • Vars
        • P(i);::S(G),XP(i)
      • Refutation
        • B(a);XR(I)
  • Actual
    • P(B);
    • Vars
      • B(a);XP(B)::S(G),XB(a)
      • P(h);EP,N_PINB(C),XP(B)::R(H)+B(C)
      • B(a);N_GUARD::R(I),XB(a)
      • B(a);N_PINB(C)::R(H)+B(C)
      • B(c);SBLOCK::QAR1(A)
      • P(h);N_PINB(C)::R(H)+B(C)
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