MESON Chess Problem Database

Problem Display
PID: 152552 (7B/2K3R1/1p2p3/1R1p4/2BkPQ2/3b4/1P4N1/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1941

7B/2K3R1/1p2p3/1R1p4/2BkPQ2/3b4/1P4N1/8

#2

9 + 5

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.exd5#
      • 2.e5#
    • 1...Be2
      • 2.exd5#
      • 2.e5#
    • 1...dxc4
      • 2.Rd7#
      • 2.Qe3#
      • 2.Qe5#
  • Tries
    • 1.Bxd3?
      • 1...dxe4
        • 2.Rd7#
        • 2.Qe3#
        • 2.Qd6#
        • 2.Qxe4#
      • 1...e5
        • 2.Rxd5#
        • 2.Qe3#
      • 1...Kxd3!
    • 1.Qe3+?
      • 1...Ke5
        • 2.Rg3#
        • 2.Rg4#
        • 2.Rg5#
        • 2.Rg6#
        • 2.Rd7#
        • 2.Re7#
        • 2.Rf7#
        • 2.Rh7#
        • 2.Rg8#
      • 1...Kxc4!
    • 1.Qe5+?
      • 1...Kxe5
        • 2.Rg4#
      • 1...Kxc4!
    • 1.Qf2+?
      • 1...Kxe4
        • 2.Rg4#
        • 2.Qf4#
      • 1...Ke5
        • 2.Rg4#
      • 1...Kxc4!
  • Keys
    • 1.Qd2!
      • 1...Kxc4
        • 2.Qb4#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Ke5
        • 2.Rg4#
      • 1...dxc4
        • 2.Qe3#
      • 1...dxe4
        • 2.Qc3#
      • 1...e5
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);XB(a)
      • Refutation
        • K(b);P-FLIGHT,XB(C)
    • Try
      • Q(E);CHECK
      • Refutation
        • K(b);P-FLIGHT,XB(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT,XQ(E)::B(I)+R(H)
      • Refutation
        • K(b);P-FLIGHT,XB(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT::B(I)+R(H)
      • Refutation
        • K(b);P-FLIGHT,XB(C)
  • Actual
    • Q(E);P_PINB(a)
    • Vars
      • K(b);N_SPINB(a),OGATEB,P-FLIGHT,XB(C)::QAR1(E)
      • K(b);N_SPINB(a),OGATEB,P-FLIGHT,XP(D)::QAR1(E)
      • K(b);N_SPINB(a),P_SPINP(c),S_FLIGHT::B(I)+R(H)
      • P(c);SBLOCK,XB(C)::QAB1(E)
      • P(c);SBLOCK,XP(D)::QAB1(E)
      • P(e);SBLOCK::QAR1(E),XB(a)
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