MESON Chess Problem Database

Problem Display
PID: 148628 (7b/8/3pQ3/3P1p2/1B1kb3/3PNp2/2P2K2/8 w - - 0 1)

Dawson, Thomas Rayner

Pittsburgh Gazette-Times, 1913

(First published on Sun Jun 29 1913)

7b/8/3pQ3/3P1p2/1B1kb3/3PNp2/2P2K2/8

#2

7 + 6

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd3
      • 2.c3#
    • 1...Bxd5
      • 2.Sxf5#
      • 2.Qxd5#
    • 1...Bf6
      • 2.Qxf6#
    • 1...f4
      • 2.Qxe4#
  • Tries
    • 1.Qxf5?
      • threat
        • 2.Qxe4#
      • 1...Bxd3
        • 2.c3#
      • 1...Bxd5
        • 2.Qxd5#
        • 2.c3#
      • 1...Bxf5!
  • Keys
    • 1.Qe7!
      • 1...Bxd3
        • 2.c3#
      • 1...Bxd5
        • 2.Sxf5#
      • 1...Be5
        • 2.Qa7#
      • 1...Bf6
        • 2.Qxf6#
      • 1...Bg7
        • 2.Qxg7#
      • 1...f4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(c);SBLOCK,XP(C)::P(A)
    • B(f);N_GUARD::QAB(G),XB(f)
    • P(d);N_GUARD::QAR1(G),XB(c)
  • Tries
    • Try
      • Q(G);XP(d)
      • Threat
        • QAR1(G),XB(c)
      • Vars
        • B(c);XP(C)::P(A)
      • Refutation
        • B(c);XQ(G)
  • Actual
    • Q(G);
    • Vars
      • B(c);SBLOCK,XP(C)::P(A)
      • B(c);N_GUARD,SBLOCK,XP(F)::S(D),XP(d)
      • B(f);SBLOCK::QAB(G)
      • B(f);N_GUARD::QAB(G),XB(f)
      • P(d);N_GUARD::QAR1(G),XB(c)
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