MESON Chess Problem Database

Problem Display
PID: 147359 (2Q5/6B1/2KN1pp1/3pb1R1/3kP3/4p3/1nP5/1N6 w - - 0 1)

Dawson, Thomas Rayner

Bolton Football and Field, 1909

(First published on Sat Sep 25 1909)

2Q5/6B1/2KN1pp1/3pb1R1/3kP3/4p3/1nP5/1N6

#2

8 + 7

2463 Southern Daily Post 1911
15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Rxd5#
    • 1...Bg3
      • 2.Rxd5#
    • 1...Bf4
      • 2.Rxd5#
    • 1...Sd3
      • 2.c3#
  • Tries
    • 1.Qe6?
      • threat
        • 2.Qxd5#
      • 1...dxe4
        • 2.Sb5#
        • 2.Qd5#
      • 1...e2!
    • 1.Qg8?
      • threat
        • 2.Qxd5#
      • 1...dxe4
        • 2.Sb5#
        • 2.Qd5#
      • 1...e2!
  • Keys
    • 1.Qg4!
      • 1...Bxd6
        • 2.e5#
      • 1...dxe4
        • 2.Qxe4#
      • 1...fxg5
        • 2.exd5#
      • 1...e2
        • 2.Qg1#
      • 1...Bh2
        • 2.Rxd5#
      • 1...Bg3
        • 2.Rxd5#
      • 1...Bf4
        • 2.Rxd5#
      • 1...Sd1
        • 2.Qxd1#
      • 1...Sd3
        • 2.c3#
      • 1...Sa4
        • 2.Qd1#
      • 1...Sc4
        • 2.Sb5#
      • 1...f5
        • 2.exf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(e);OGATE,P_SPINP(f)::R1(D),XP(d)
    • S(a);SBLOCK::P(B)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAR1(H),XP(d)
      • Refutation
        • P(b);
    • Try
      • Q(H);
      • Threat
        • QAR1(H),XP(d)
      • Refutation
        • P(b);
  • Actual
    • Q(H);
    • Vars
      • B(e);OGATE,P_SPINP(f),XS(F)::QAR(H)+P(C)
      • P(d);OGATE,P_SPINP(d),XP(C)::QAR1(H),XP(d)
      • P(f);P_SPINB(e),XR(D)::QAR(H)+P(C),XP(d)
      • P(b);OGATEB::QAB(H)
      • B(e);OGATE,P_SPINP(f)::R1(D),XP(d)
      • S(a);N_GUARD::QAR(H),XS(a)
      • S(a);SBLOCK::P(B)
      • S(a);N_GUARD::QAR(H)
      • S(a);SBLOCK::S(F)
      • P(f);OGATE,P_SPINB(e)::QAR(H)+P(C),XP(f)
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