MESON Chess Problem Database

Problem Display
PID: 253336 (6QK/8/3pNp2/2p1k3/2P1rp2/8/5P2/1BB5 w - - 0 1)

Laidlaw, Leslie

The Field, 1912

(First published on Sat Feb 10 1912)

6QK/8/3pNp2/2p1k3/2P1rp2/8/5P2/1BB5

#2

7 + 6

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Bb2#
      • 2.Bxf4#
    • 1...Re2
      • 2.Bxf4#
  • Tries
    • 1.Sc7?
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Bb2#
      • 1...d5
        • 2.Qxd5#
      • 1...Rd4
        • 2.Qe6#
        • 2.Qe8#
      • 1...f5
        • 2.Qg7#
      • 1...Kf5!
    • 1.Sd8?
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Bb2#
      • 1...Rxc4
        • 2.Sc6#
      • 1...d5
        • 2.Qxd5#
      • 1...Rd4
        • 2.Sc6#
        • 2.Qe6#
        • 2.Qe8#
      • 1...f5
        • 2.Qg7#
      • 1...Kf5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qd5#
      • 1...Kxd4
        • 2.Bb2#
      • 1...Rxd4
        • 2.Qe8#
      • 1...d5
        • 2.Qxd5#
      • 1...f5
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD::B(B),XP(b)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(F)
      • Vars
        • K(d);N_GUARD,S_CUTR(a),S_FLIGHT::B(B)
        • P(e);::QAR1(F),XP(e)
        • P(f);OGATEB,SBLOCK::QAB(F)
      • Refutation
        • K(d);P-FLIGHT,P_SPINR(a)
    • Try
      • S(E);
      • Threat
        • QAR1(F)
      • Vars
        • K(d);N_GUARD,S_CUTR(a),S_FLIGHT::B(B)
        • R(a);XP(D)::S(E)
        • P(e);::QAR1(F),XP(e)
        • P(f);OGATEB,SBLOCK::QAB(F)
      • Refutation
        • K(d);P-FLIGHT,P_SPINR(a)
  • Actual
    • S(E);
    • Threat
      • QAR1(F)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(E)::B(B)
      • R(a);SBLOCK,XS(E)::QAR(F)
      • P(e);::QAR1(F),XP(e)
      • P(f);OGATEB::QAB(F)
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