MESON Chess Problem Database

Problem Display
PID: 148897 (8/1BP5/Rn1Pr3/5r2/p1kp4/B7/3P1nb1/KQ6 w - - 0 1)

Dawson, Thomas Rayner

Falkirk Herald, 1915

(First published on Wed Mar 31 1915)

8/1BP5/Rn1Pr3/5r2/p1kp4/B7/3P1nb1/KQ6

#2

8 + 8

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Qc2#
    • 1...Sd5
      • 2.Rc6#
    • 1...Sd7
      • 2.Rxa4#
    • 1...Sa8
      • 2.Rxa4#
    • 1...Sc8
      • 2.Rxa4#
    • 1...d3
      • 2.Qb4#
  • Tries
    • 1.d3+?
      • 1...Kc3
        • 2.Bb4#
      • 1...Sxd3!
    • 1.c8Q+?
      • 1...Rc5
        • 2.Qxc5#
      • 1...Sxc8
        • 2.Rxa4#
      • 1...Bc6!
    • 1.c8R+?
      • 1...Rc5
        • 2.Rxc5#
      • 1...Sxc8
        • 2.Rxa4#
      • 1...Bc6!
  • Keys
    • 1.c8S!
      • threat
        • 2.Sxb6#
      • 1...Rxd6
        • 2.Sxd6#
      • 1...Sxc8
        • 2.Rxa4#
      • 1...d3
        • 2.Qb4#
      • 1...Rb5
        • 2.Qc2#
      • 1...Sd5
        • 2.Rc6#
      • 1...Sd7
        • 2.Rxa4#
      • 1...Sa8
        • 2.Rxa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(f);SBLOCK::QAR2(B)
    • S(g);OGATE,SBLOCK::R(E)
    • S(g);N_GUARD::R(E),XP(c)
    • P(e);SBLOCK::QAR1(B)
  • Tries
    • Try
      • P(C);CHECK
      • Vars
        • K(d);P-FLIGHT::B(D)
      • Refutation
        • S(a);XP(C)
    • Try
      • P(H);CHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::QAR1(H),XR(f)
        • S(g);XQ(H)::R(E),XP(c)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • P(H);CHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::R1(H),XR(f)
        • S(g);XR(H)::R(E),XP(c)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • P(H);
    • Threat
      • S(H),XS(g)
    • Vars
      • R(h);XP(F)::S(H),XR(h)
      • S(g);N_GUARD,XS(H)::R(E),XP(c)
      • P(e);SBLOCK::QAR1(B)
      • R(f);SBLOCK::QAR2(B)
      • S(g);OGATE,SBLOCK::R(E)
      • S(g);N_GUARD::R(E),XP(c)
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