MESON Chess Problem Database

Problem Display
PID: 152551 (8/3B2p1/3pPbP1/RN6/3pk3/1P4P1/5QK1/8 w - - 0 1)

Dawson, Thomas Rayner

Stratford Express, 1940

(First published on Fri Oct 4 1940)

8/3B2p1/3pPbP1/RN6/3pk3/1P4P1/5QK1/8

#2

9 + 5

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Sc3#
    • 1...Be5
      • 2.Qf3#
    • 1...d3
      • 2.Sxd6#
  • Tries
    • 1.Qe2+?
      • 1...Kd5
        • 2.Sa3#
        • 2.Sc3#
        • 2.Sa7#
        • 2.Sc7#
      • 1...Kf5!
    • 1.Qf4+?
      • 1...Kd5
        • 2.Sa3#
        • 2.Sc3#
        • 2.Sxd4#
        • 2.Sxd6#
        • 2.Sa7#
        • 2.Sc7#
      • 1...Kd3!
  • Keys
    • 1.e7!
      • 1...Kd3
        • 2.Bf5#
      • 1...Kd5
        • 2.Sc3#
      • 1...Ke5
        • 2.Qxd4#
        • 2.Qf5#
      • 1...Bxe7
        • 2.Qxd4#
      • 1...Bh4
        • 2.Qxd4#
      • 1...Be5
        • 2.Qf3#
      • 1...Bg5
        • 2.Qxd4#
      • 1...d3
        • 2.Sxd6#
      • 1...d5
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::R(E)+S(F),DCHECK
    • B(d);SBLOCK::QAB1(A)
    • P(a);SBLOCK::S(F),XP(c)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • P(G);
    • Vars
      • K(b);S_FLIGHT::B(I)
      • K(b);S_FLIGHT::R(E)+S(F),DCHECK
      • B(d);N_GUARD,XP(G)::QAR1(A),XP(a)
      • B(d);N_GUARD::QAR1(A),XP(a)
      • B(d);SBLOCK::QAB1(A)
      • P(a);SBLOCK::S(F),XP(c)
      • P(c);SBLOCK::QAR2(A)
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