MESON Chess Problem Database

Problem Display
PID: 149034 (4Bb2/4nQ2/7k/8/6K1/8/8/8 w - - 0 1)

Dawson, Thomas Rayner

Cheltenham Chronicle, 1919

(First published on Mon Aug 18 1919)

4Bb2/4nQ2/7k/8/6K1/8/8/8

#2

3 + 3

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bg7
      • 2.Qh5#
    • 1...Sd5
      • 2.Qg6#
    • 1...Sf5
      • 2.Qg6#
    • 1...Sc6
      • 2.Qg6#
    • 1...Sg6
      • 2.Qxg6#
    • 1...Sc8
      • 2.Qg6#
    • 1...Sg8
      • 2.Qg6#
  • Tries
    • 1.Kg3?
      • 1...Kg5
        • 2.Qf4#
      • 1...Bg7
        • 2.Qh5#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sd5
        • 2.Qg6#
      • 1...Sc6
        • 2.Qg6#
      • 1...Sc8
        • 2.Qg6#
      • 1...Sg8
        • 2.Qg6#
      • 1...Sf5+!
    • 1.Kh3?
      • 1...Bg7
        • 2.Qh5#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sd5
        • 2.Qg6#
      • 1...Sf5
        • 2.Qg6#
      • 1...Sc6
        • 2.Qg6#
      • 1...Sc8
        • 2.Qg6#
      • 1...Sg8
        • 2.Qg6#
      • 1...Kg5!
    • 1.Kf4?
      • 1...Sg6+
        • 2.Qxg6#
      • 1...Bg7
        • 2.Qh5#
      • 1...Sf5
        • 2.Qg6#
      • 1...Sc6
        • 2.Qg6#
      • 1...Sc8
        • 2.Qg6#
      • 1...Sg8
        • 2.Qg6#
      • 1...Sd5+!
    • 1.Kh4?
      • 1...Sg6+
        • 2.Qxg6#
      • 1...Bg7
        • 2.Qh5#
      • 1...Sd5
        • 2.Qg6#
      • 1...Sc6
        • 2.Qg6#
      • 1...Sc8
        • 2.Qg6#
      • 1...Sg8
        • 2.Qg6#
      • 1...Sf5+!
    • 1.Qf6+?
      • 1...Sg6
        • 2.Qxg6#
      • 1...Kh7!
    • 1.Qxe7?
      • 1...Bg7
        • 2.Qh4#
      • 1...Bxe7!
  • Keys
    • 1.Kf3!
      • 1...Kg5
        • 2.Qf4#
      • 1...Bg7
        • 2.Qh5#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sd5
        • 2.Qg6#
      • 1...Sf5
        • 2.Qg6#
      • 1...Sc6
        • 2.Qg6#
      • 1...Sc8
        • 2.Qg6#
      • 1...Sg8
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(c);SBLOCK::QAR1(B)
    • S(b);N_GUARD::QAR1(B)
    • S(b);N_GUARD::QAR1(B),XS(b)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • B(c);SBLOCK::QAR1(B)
        • S(b);N_GUARD::QAR1(B),XS(b)
        • S(b);N_GUARD::QAR1(B)
      • Refutation
        • S(b);CHECK
    • Try
      • K(A);S_FLIGHT
      • Vars
        • B(c);SBLOCK::QAR1(B)
        • S(b);N_GUARD::QAR1(B),XS(b)
        • S(b);N_GUARD::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • S(b);CHECK,N_GUARD::QAR1(B),XS(b)
        • B(c);SBLOCK::QAR1(B)
        • S(b);N_GUARD::QAR1(B)
      • Refutation
        • S(b);CHECK
    • Try
      • K(A);P-FLIGHT
      • Vars
        • S(b);CHECK,N_GUARD::QAR1(B),XS(b)
        • B(c);SBLOCK::QAR1(B)
        • S(b);N_GUARD::QAR1(B)
      • Refutation
        • S(b);CHECK
    • Try
      • Q(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR1(B),XS(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);XS(b)
      • Vars
        • B(c);SBLOCK::QAR2(B)
      • Refutation
        • B(c);XQ(B)
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • B(c);SBLOCK::QAR1(B)
      • S(b);N_GUARD::QAR1(B),XS(b)
      • S(b);N_GUARD::QAR1(B)
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