MESON Chess Problem Database

Problem Display
PID: 152554 (4N2B/N5Rr/1q4pb/RB1k3r/pP3p2/4pK1p/PQ6/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1941

4N2B/N5Rr/1q4pb/RB1k3r/pP3p2/4pK1p/PQ6/8

#2

10 + 10

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Bd7#
    • 1...Qe6
      • 2.Bf1#
      • 2.Be2#
      • 2.Bd3#
      • 2.Ba6#
  • Tries
    • 1.Sc7+?
      • 1...Kd6
        • 2.Sc8#
        • 2.Qf6#
      • 1...Qxc7!
    • 1.Bxa4+?
      • 1...Ke6
        • 2.Bd7#
        • 2.Qf6#
      • 1...Qxa5
        • 2.Bb3#
      • 1...Qc5
        • 2.Bb3#
      • 1...Qb5
        • 2.Bb3#
      • 1...Kc4!
    • 1.Bc6+?
      • 1...Ke6
        • 2.Bd7#
        • 2.Qf6#
      • 1...Kc4!
    • 1.Rd7+?
      • 1...Ke6
        • 2.Qf6#
      • 1...Qd6
        • 2.Sc7#
        • 2.Rxd6#
      • 1...Rxd7!
    • 1.Qd4+?
      • 1...Kxd4
        • 2.Rd7#
      • 1...Ke6
        • 2.Bd7#
      • 1...Qxd4!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qe4#
      • 1...Kd4
        • 2.Rd7#
      • 1...Ke5
        • 2.Qe4#
      • 1...Ke6
        • 2.Bd7#
      • 1...Qd4
        • 2.Bc4#
      • 1...Qe6
        • 2.Qc5#
      • 1...Re5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::B(F)
  • Tries
    • Try
      • S(I);CHECK
      • Refutation
        • Q(g);XS(I)
    • Try
      • B(F);CHECK,XP(c)
      • Vars
        • Q(g);XR(E)::B(F)
        • Q(g);P_SPINQ(g)::B(F)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • B(F);CHECK
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • R(H);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(B)
      • Refutation
        • R(j);XR(H)
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);P-FLIGHT,XQ(B)::B(J)+R(H),DCHECK
        • K(e);S_FLIGHT::B(F)
      • Refutation
        • Q(g);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(e);P-FLIGHT::B(J)+R(H),DCHECK
      • K(e);P-FLIGHT::QAR1(B)
      • K(e);S_FLIGHT::B(F)
      • Q(g);SBLOCK::R(E)+B(F),DCHECK
      • Q(g);N_GUARD,SBLOCK::QAR1(B)
      • R(f);SBLOCK::QAB1(B)
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