MESON Chess Problem Database

Problem Display
PID: 736 (rb6/n1P1N3/2p2K2/2P5/4k3/8/3Q2pN/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1947

rb6/n1P1N3/2p2K2/2P5/4k3/8/3Q2pN/8

#2

6 + 6

78 Bulletin Ouvrier des Echecs 1955

SOLUTION

  • SOUND
  • Tries
    • 1.Qe2+?
      • 1...Kf4
        • 2.Qf3#
        • 2.Qe5#
      • 1...Kd4!
    • 1.Qd3+?
      • 1...Kf4
        • 2.Sg6#
        • 2.Qf3#
      • 1...Kxd3!
    • 1.cxb8Q?
      • threat
        • 2.Qbf4#
        • 2.Qe5#
        • 2.Qb1#
        • 2.Qbb4#
      • 1...g1Q
        • 2.Qbf4#
        • 2.Qe5#
      • 1...g1B
        • 2.Qbf4#
        • 2.Qe5#
        • 2.Qb1#
      • 1...g1R
        • 2.Qbf4#
        • 2.Qe5#
        • 2.Qbb4#
      • 1...Sb5
        • 2.Qbf4#
        • 2.Qe5#
      • 1...Rxb8!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sg3#
        • 2.Sd6#
        • 2.Qd4#
      • 1...Bxc7
        • 2.Qd4#
      • 1...g1Q
        • 2.Sd6#
      • 1...g1B
        • 2.Sg3#
        • 2.Sd6#
      • 1...g1R
        • 2.Sd6#
        • 2.Qd4#
      • 1...Sb5
        • 2.Sg3#
      • 1...Sc8
        • 2.Sg3#
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
    • Try
      • P(E);XB(f)
      • Threat
        • DUALS(4)
      • Refutation
        • R(e);XQ(E)
  • Actual
    • S(F);
    • Threat
      • DUALS(3)
    • Vars
      • B(f);XP(E)::QAR1(A)
      • P(a);::S(F)
      • S(d);::S(F)
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