MESON Chess Problem Database

Problem Display
PID: 106787 (B7/2R4p/2Q3p1/5Nn1/5RP1/b3B3/2K3pk/6Nb w - - 0 1)

Lawton, Howard

The Field, 1955

(First published on Thu Aug 4 1955)

B7/2R4p/2Q3p1/5Nn1/5RP1/b3B3/2K3pk/6Nb

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sh3
      • 2.Sf3#
    • 1...Se4
      • 2.Rxh7#
    • 1...Se6
      • 2.Rxh7#
  • Tries
    • 1.Rxh7+?
      • 1...Sh3
        • 2.Sf3#
        • 2.Rxh3#
      • 1...Sxh7!
  • Keys
    • 1.Rf1!
      • threat
        • 2.Bf4#
      • 1...gxf1Q
        • 2.Qxh1#
      • 1...gxf1S
        • 2.Qxh1#
      • 1...gxf1B
        • 2.Qxh1#
      • 1...gxf1R
        • 2.Qxh1#
      • 1...Bc1
        • 2.Qd6#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Sh3
        • 2.Sf3#
      • 1...Se4
        • 2.Rxh7#
      • 1...Se6
        • 2.Rxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD,SBLOCK::S(A)
    • S(e);N_GUARD::R(H),XP(g)
  • Tries
    • Try
      • R(H);CHECK,XP(g)
      • Refutation
        • S(e);XR(H)
  • Actual
    • R(D);
    • Threat
      • B(C)
    • Vars
      • P(b);OGATE,XR(D)::QAR1(G),XB(a)
      • B(d);N_GUARD::QAB(G)
      • B(d);N_GUARD::QAB(G),XB(d)
      • S(e);N_GUARD,SBLOCK::S(A)
      • S(e);N_GUARD::R(H),XP(g)
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