MESON Chess Problem Database

Problem Display
PID: 151445 (3kN3/2ppRR2/B3p1nK/B5p1/b7/1q4b1/8/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1935

3kN3/2ppRR2/B3p1nK/B5p1/b7/1q4b1/8/8

#2

6 + 9

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Bxc7#
    • 1...Bf2
      • 2.Bxc7#
    • 1...Bh4
      • 2.Bxc7#
    • 1...Sf4
      • 2.Bxc7#
    • 1...Se5
      • 2.Bxc7#
    • 1...e5
      • 2.Bxc7#
    • 1...d6
      • 2.Bxc7#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Re8#
      • 1...Sxe7
        • 2.Rf8#
      • 1...Bxd6!
    • 1.Sf6?
      • threat
        • 2.Re8#
      • 1...Sxe7
        • 2.Rf8#
      • 1...d6
        • 2.Bxc7#
      • 1...d5!
  • Keys
    • 1.Sg7!
      • threat
        • 2.Re8#
      • 1...Sxe7
        • 2.Rf8#
      • 1...d5
        • 2.Sxe6#
      • 1...d6
        • 2.Bxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(b);N_GUARD::B(A),XP(g)
    • S(f);S_CUTB(b)::B(A),XP(g)
    • P(e);S_CUTB(b)::B(A),XP(g)
    • P(h);S_CUTB(b)::B(A),XP(g)
  • Tries
    • Try
      • S(F);
      • Threat
        • R1(D)
      • Vars
        • S(f);N_GUARD,SBLOCK,XR(D)::R(E)
      • Refutation
        • B(b);XS(F)
    • Try
      • S(F);
      • Threat
        • R1(D)
      • Vars
        • S(f);N_GUARD,SBLOCK,XR(D)::R(E)
        • P(h);S_CUTB(b)::B(A),XP(g)
      • Refutation
        • P(h);
  • Actual
    • S(F);
    • Threat
      • R1(D)
    • Vars
      • S(f);N_GUARD,SBLOCK,XR(D)::R(E)
      • P(h);N_GUARD,S_CUTQ(a)::S(F),XP(e)
      • P(h);S_CUTB(b)::B(A),XP(g)
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