MESON Chess Problem Database

Problem Display
PID: 71940 (2K5/B1N1p3/2kp3b/2n5/3pR3/8/6R1/7B w - - 0 1)

Anonymous

Original for 08. WCCT, 2007

2K5/B1N1p3/2kp3b/2n5/3pR3/8/6R1/7B

#2

6 + 6

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe4
      • 2.Rc2#
  • Tries
    • 1.Rc2?
      • threat
        • 2.Re6#
      • 1...e6
        • 2.Rxe6#
      • 1...e5!
  • Keys
    • 1.Rb2!
      • threat
        • 2.Rb6#
      • 1...Sxe4
        • 2.Rc2#
      • 1...Sb3
        • 2.Re6#
      • 1...Sd3
        • 2.Re6#
      • 1...Sa4
        • 2.Re6#
      • 1...Sa6
        • 2.Re6#
      • 1...Se6
        • 2.Rxe6#
      • 1...Sb7
        • 2.Re6#
      • 1...Sd7
        • 2.Re6#

Anticipated by 81150(1980)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATEB,XR(C)::R(B)
  • Tries
    • Try
      • R(B);P_PINS(b)
      • Threat
        • B(A)+R(C)
      • Vars
        • P(f);::B(A)+R(C),XP(f)
      • Refutation
        • P(f);
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • S(b);OGATEB,P_SPINS(b),XR(C)::R(B)
      • S(b);N_GUARD::B(A)+R(C)
      • S(b);N_GUARD::B(A)+R(C),XS(b)
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