MESON Chess Problem Database

Problem Display
PID: 153583 (1b1R1RQ1/7K/8/1p3n1p/4kn2/8/2PP3N/B4r2 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1948

1b1R1RQ1/7K/8/1p3n1p/4kn2/8/2PP3N/B4r2

#2

8 + 7

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4+?
      • 1...Sd4
        • 2.Qxd4#
      • 1...bxc4!
    • 1.Qe6+?
      • 1...Be5
        • 2.Qxf5#
        • 2.Qxe5#
      • 1...Sxe6!
    • 1.Qg2+?
      • 1...Rf3
        • 2.Qxf3#
      • 1...Sxg2!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qxf5#
      • 1...Se6
        • 2.d3#
      • 1...Se2
        • 2.d3#
      • 1...Sg2
        • 2.d3#
      • 1...Sd3
        • 2.cxd3#
      • 1...Sh3
        • 2.d3#
      • 1...Sd5
        • 2.d3#
      • 1...Sg6
        • 2.d3#
      • 1...Se3
        • 2.Rd4#
      • 1...Sg3
        • 2.Rd4#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sh4
        • 2.Rd4#
      • 1...Sd6
        • 2.Qe5#
      • 1...Sh6
        • 2.Rd4#
      • 1...Se7
        • 2.Rd4#
      • 1...Sg7
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::QAR1(H),XS(e)
      • Refutation
        • P(d);XQ(H)
    • Try
      • Q(H);CHECK
      • Refutation
        • S(c);XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::QAB1(H),XR(a)
      • Refutation
        • S(c);XQ(H)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H),XS(e)
    • Vars
      • S(c);N_GUARD::P(C)
      • S(c);OGATE::P(B),XS(c)
      • S(e);N_GUARD::R1(F)
      • S(e);N_GUARD::R1(F),XS(e)
      • S(e);OGATE::QAR1(H)
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