MESON Chess Problem Database

Problem Display
PID: 2935 (8/5p2/5Q2/1p1k2p1/1P1p2P1/P4K2/1N2P3/8 w - - 0 1)

Dawson, Thomas Rayner

Deutsches Wochenschach, 1914

(First published on Sun Mar 29 1914)

8/5p2/5Q2/1p1k2p1/1P1p2P1/P4K2/1N2P3/8

#2

7 + 5

2681 All Change Here! 1919
15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.e4#
  • Tries
    • 1.Kf2?
      • 1...Ke4
        • 2.Qf5#
      • 1...d3!
    • 1.Sa4?
      • threat
        • 2.Sb6#
      • 1...Kc4
        • 2.Qxf7#
      • 1...bxa4!
    • 1.Qc6+?
      • 1...Ke5
        • 2.Sd3#
      • 1...Kxc6!
    • 1.a4?
      • 1...d3
        • 2.e4#
      • 1...bxa4!
  • Keys
    • 1.Sd1!
      • 1...Kc4
        • 2.Qxf7#
      • 1...d3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::P(B)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAB1(G)
      • Refutation
        • P(a);
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • K(c);S_FLIGHT::QAB(G),XP(e)
      • Refutation
        • P(b);XS(A)
    • Try
      • Q(G);CHECK
      • Vars
        • K(c);P-FLIGHT::S(A)
      • Refutation
        • K(c);S_FLIGHT,XQ(G)
    • Try
      • P(C);
      • Vars
        • P(a);N_GUARD::P(B)
      • Refutation
        • P(b);XP(C)
  • Actual
    • S(A);
    • Vars
      • K(c);S_FLIGHT::QAB(G),XP(e)
      • P(a);N_GUARD::S(A)
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