MESON Chess Problem Database

Problem Display
PID: 148874 (8/8/2p5/2K2p2/3Pk2n/1p5P/1P1PP2P/5Q2 w - - 0 1)

Dawson, Thomas Rayner

Cheltenham Chronicle, 1918

(First published on Wed Jul 31 1918)

8/8/2p5/2K2p2/3Pk2n/1p5P/1P1PP2P/5Q2

#2

8 + 5

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Sg2
      • 2.Qf3#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sg6
      • 2.Qf3#
    • 1...f4
      • 2.Qb1#
  • Tries
    • 1.Kc4?
      • 1...Sf3
        • 2.Qxf3#
      • 1...f4
        • 2.Qb1#
      • 1...Sg2
        • 2.Qf3#
      • 1...Sg6
        • 2.Qf3#
      • 1...c5!
    • 1.Qg2+?
      • 1...Kf4
        • 2.e3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sxg2!
    • 1.Qg1?
      • threat
        • 2.Qe3#
      • 1...Kf4
        • 2.Qe3#
      • 1...f4
        • 2.Qb1#
      • 1...Sg2!
    • 1.Qf2?
      • threat
        • 2.Qe3#
        • 2.d3#
      • 1...Sf3
        • 2.Qe3#
        • 2.Qxf3#
      • 1...Sg2
        • 2.Qf3#
        • 2.d3#
      • 1...f4!
  • Keys
    • 1.Qc1!
      • threat
        • 2.d3#
      • 1...Kf4
        • 2.d3#
      • 1...f4
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • S(c);N_GUARD::QAB1(A)
    • S(c);N_GUARD::QAB1(A),XS(c)
    • P(d);SBLOCK::QAB(A)
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Vars
        • S(c);N_GUARD::QAB1(A),XS(c)
        • P(d);SBLOCK::QAB(A)
        • S(c);N_GUARD::QAB1(A)
      • Refutation
        • P(e);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::P(D)
        • S(c);N_GUARD,P_SPINS(c)::QAB1(A),XS(c)
      • Refutation
        • S(c);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
        • P(d);SBLOCK::QAB(A)
      • Refutation
        • S(c);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • P(d);
  • Actual
    • Q(A);
    • Threat
      • P(C)
    • Vars
      • K(b);P-FLIGHT::QAB(A)+P(C)
      • P(d);SBLOCK::QAB(A)
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