MESON Chess Problem Database

Problem Display
PID: 108060 (8/2p5/2r1p3/4RpN1/R1N2k1P/6pP/4K1B1/2b5 w - - 0 1)

Filkington, RA

Vancouver Province, 1956

8/2p5/2r1p3/4RpN1/R1N2k1P/6pP/4K1B1/2b5

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sxe6#
  • Tries
    • 1.Sb2+?
      • 1...Rc4
        • 2.Sd3#
      • 1...Kxe5!
    • 1.Re3?
      • threat
        • 2.Rf3#
      • 1...Rxc4
        • 2.Sxe6#
        • 2.Rxc4#
      • 1...Bxe3!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Se5#
        • 2.Sb6#
        • 2.Sd6#
      • 1...Rxc5
        • 2.Sxe6#
      • 1...Ra6
        • 2.Sa5#
      • 1...Rb6
        • 2.Sxb6#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Bb2
        • 2.Sxb2#
      • 1...Bd2
        • 2.Sxd2#
      • 1...Ba3
        • 2.Sxa3#
      • 1...Be3
        • 2.Sxe3#
      • 1...e5
        • 2.Sxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(e);N_GUARD::S(H),XP(f)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • R(e);P_SPINR(e)::S(E)
      • Refutation
        • K(c);S_FLIGHT,XR(G)
    • Try
      • R(G);
      • Threat
        • R1(G)
      • Refutation
        • B(a);XR(G)
  • Actual
    • R(G);
    • Threat
      • DUALS(8)
    • Vars
      • R(e);N_GUARD,XR(G)::S(H),XP(f)
      • R(e);::R(D)+S(E)
      • R(e);::R(D)+S(E),XR(e)
      • B(a);::R(D)+S(E),XB(a)
      • P(f);::R(D)+S(E),XP(f)
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