MESON Chess Problem Database

Problem Display
PID: 45027 (8/3Q4/2p5/4Bp2/1pk1bp2/3N1p2/P4P2/2K5 w - - 0 1)

Planck, Charles

4th Prize, English Mechanic and World of Science, 1883

(First published on Fri Aug 3 1883)

8/3Q4/2p5/4Bp2/1pk1bp2/3N1p2/P4P2/2K5

#2

6 + 7

3316 Chess Problem Text Book 1887
15351 SCPF/BCPS Black Books 2017
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd3
      • 2.Qxc6#
    • 1...c5
      • 2.Sb2#
  • Tries
    • 1.Qxc6+?
      • 1...Kxd3
        • 2.Qb5#
        • 2.Qc2#
        • 2.Qa6#
      • 1...Bxc6!
  • Keys
    • 1.Qb7!
      • 1...Kxd3
        • 2.Qa6#
      • 1...Kd5
        • 2.Qf7#
      • 1...Bxd3
        • 2.Qxc6#
      • 1...Bd5
        • 2.Qa6#
      • 1...b3
        • 2.Qxb3#
      • 1...c5
        • 2.Sb2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(d);N_GUARD,SBLOCK,XS(D)::QAR2(F),XP(g)
    • P(g);SBLOCK::S(D)
  • Tries
    • Try
      • Q(F);CHECK,XP(g)
      • Refutation
        • B(d);XQ(F)
  • Actual
    • Q(F);
    • Vars
      • K(c);S_FLIGHT,XS(D)::QAB(F)
      • K(c);P_SPINP(g),S_FLIGHT::QAB(F)
      • B(d);N_GUARD,SBLOCK,XS(D)::QAR2(F),XP(g)
      • B(d);SBLOCK::QAB(F)
      • P(b);OGATE::QAB1(F),XP(b)
      • P(g);SBLOCK::S(D)
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