MESON Chess Problem Database

Problem Display
PID: 2319 (1nB1r1r1/2N2p2/2p2k1P/RbN4K/3Pp2P/B7/8/1R6 w - - 0 1)

Floyd, WE

Source?, 0000

1nB1r1r1/2N2p2/2p2k1P/RbN4K/3Pp2P/B7/8/1R6

#2

10 + 8

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.Sxe4#
    • 1...Ref8
      • 2.Sxe4#
  • Tries
    • 1.Sd7+?
      • 1...Kf5
        • 2.Rf1#
      • 1...Sxd7!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Rf1#
      • 1...Re5+
        • 2.dxe5#
      • 1...Rg5+
        • 2.hxg5#
      • 1...Bxd3
        • 2.Rf5#
      • 1...c5
        • 2.Sd5#
      • 1...Rg1
        • 2.Sxe8#
      • 1...Rg2
        • 2.Sxe8#
      • 1...Rg3
        • 2.Sxe8#
      • 1...Rg4
        • 2.Sxe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • R(g);N_GUARD::S(F),XP(a)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINB(b)::R(A)
      • Refutation
        • S(f);XS(F)
  • Actual
    • S(F);
    • Threat
      • R(A)
    • Vars
      • R(g);CHECK,OGATE::P(C),XR(g)
      • R(h);CHECK,OGATE::P(D),XR(h)
      • B(b);OGATE,XS(F)::R1(E)
      • P(c);N_GUARD::S(I)
      • R(h);N_GUARD::S(I),XR(g)
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