MESON Chess Problem Database

Problem Display
PID: 147354 (8/3Q4/5K2/3N4/3k4/1Pb3P1/3PP3/1R1R4 w - - 0 1)

Dawson, Thomas Rayner

Yorkshire Weekly Post, 1909

(First published on Sat Jun 12 1909)

8/3Q4/5K2/3N4/3k4/1Pb3P1/3PP3/1R1R4

#2

9 + 2

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4+
      • 2.Sxc3#
  • Tries
    • 1.Rdc1?
      • 1...Ke4+
        • 2.Sxc3#
      • 1...Bxd2
        • 2.Rc4#
      • 1...Ba1
        • 2.Rc4#
      • 1...Bb2
        • 2.Rc4#
      • 1...Bb4
        • 2.Rc4#
      • 1...Ba5
        • 2.Rc4#
      • 1...Kc5+!
    • 1.Qa7+?
      • 1...Ke4+
        • 2.Sxc3#
      • 1...Kxd5+!
    • 1.dxc3+?
      • 1...Ke4
        • 2.Rd4#
        • 2.Qa4#
        • 2.Qg4#
        • 2.Qf5#
        • 2.Qe6#
        • 2.Qe8#
        • 2.Qe7#
        • 2.Qh7#
      • 1...Kc5!
  • Keys
    • 1.Rbc1!
      • 1...Ke4+
        • 2.Sxc3#
      • 1...Kc5+
        • 2.d4#
      • 1...Bxd2
        • 2.Rc4#
      • 1...Ba1
        • 2.Rc4#
      • 1...Bb2
        • 2.Rc4#
      • 1...Bb4
        • 2.Rc4#
      • 1...Ba5
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);CHECK,P-FLIGHT::S(G),XB(a)
  • Tries
    • Try
      • R(B);
      • Vars
        • K(b);CHECK,P-FLIGHT::S(G),XB(a)
        • B(a);OGATE,XP(C)::R1(B)
        • B(a);OGATE::R1(B)
      • Refutation
        • K(b);CHECK,P_SPINB(a),S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);CHECK,P-FLIGHT::S(G),XB(a)
      • Refutation
        • K(b);CHECK,P-FLIGHT,XS(G)
    • Try
      • P(C);CHECK,XB(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(b);CHECK,P-FLIGHT::S(G),XB(a)
      • K(b);CHECK,OGATE,P_SPINB(a),S_FLIGHT::P(C)
      • B(a);OGATE,P_SPINB(a),XP(C)::R1(A)
      • B(a);OGATE::R1(A)
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