MESON Chess Problem Database

Problem Display
PID: 20939 (8/8/6B1/3Q1R2/2K5/2P1p3/pNkBpR2/bb6 w - - 0 1)

Booth, David (Jr)

3rd Prize, Good Companions (January), 1914

8/8/6B1/3Q1R2/2K5/2P1p3/pNkBpR2/bb6

#2

8 + 6

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...e1S
      • 2.Bxe3#
  • Tries
    • 1.Rxe2?
      • threat
        • 2.Bxe3#
      • 1...exd2
        • 2.Qxd2#
      • 1...Kxb2!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qc1#
      • 1...Kxb2
        • 2.Qc1#
      • 1...Kxd2
        • 2.Qd1#
      • 1...Bxb2
        • 2.Rd5#
      • 1...exd2
        • 2.Rb5#
      • 1...e1Q
        • 2.Rb5#
      • 1...e1S
        • 2.Bxe3#
      • 1...e1B
        • 2.Rb5#
      • 1...e1R
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATEB::R(C)+B(B),XP(f)
  • Tries
    • Try
      • R(C);XP(e)
      • Threat
        • R(C)+B(B),XP(f)
      • Vars
        • P(f);OGATE,P_SPINP(f),XB(B)::QAR1(F),XP(f)
      • Refutation
        • K(d);P-FLIGHT,XS(A)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • K(d);P-FLIGHT,XS(A)::QAB1(F)
      • K(d);P-FLIGHT,P_SPINP(e),XB(B)::QAR1(F)
      • B(a);SBLOCK,XS(A)::B(H)+R(G)
      • P(f);SBLOCK,XB(B)::B(H)+R(G)
      • P(e);::B(H)+R(G)
      • P(e);OGATEB::R(C)+B(B),XP(f)
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