MESON Chess Problem Database

Problem Display
PID: 140515 (2q1R3/1B1pN2Q/1r3PR1/1N2kr2/3p1p2/8/2p5/2K5 w - - 0 1)

Stubbs, Arthur Goodwin

Chess Amateur (The), 1911

2q1R3/1B1pN2Q/1r3PR1/1N2kr2/3p1p2/8/2p5/2K5

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Sxc8#
    • 1...Rxb5
      • 2.Sxc8#
    • 1...d5
      • 2.Sc6#
    • 1...d6
      • 2.Sxc8#
  • Keys
    • 1.Rh6!
      • threat
        • 2.Qxf5#
      • 1...Ke6
        • 2.Sxc8#
      • 1...Rfxf6
        • 2.Qe4#
      • 1...Rxb5
        • 2.Sxc8#
      • 1...Rbxf6
        • 2.Sg6#
      • 1...d5
        • 2.Sc6#
      • 1...Rg5
        • 2.Qe4#
      • 1...Rh5
        • 2.Qe4#
      • 1...d6
        • 2.Sxc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(d);P-FLIGHT::R(H)+S(F),XQ(h)
    • R(f);N_GUARD,XS(B)::R(H)+S(F),XQ(h)
    • P(g);SBLOCK::R(H)+S(F),DCHECK
    • P(g);S_CUTR(f)::R(H)+S(F),XQ(h)
  • Actual
    • R(D);
    • Threat
      • QAR1(G),XR(e)
    • Vars
      • K(d);P-FLIGHT::R(H)+S(F),XQ(h)
      • R(e);OGATE,XP(C)::QAR1(G)
      • R(f);N_GUARD,XS(B)::R(H)+S(F),XQ(h)
      • R(f);SBLOCK,XP(C)::R(H)+S(F),DCHECK
      • P(g);SBLOCK::R(H)+S(F),DCHECK
      • R(e);OGATE::QAR1(G)
      • P(g);S_CUTR(f)::R(H)+S(F),XQ(h)
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