MESON Chess Problem Database

Problem Display
PID: 161373 (3n1Q2/8/3pk3/1p2N3/1P2BP2/5p2/K3bP2/4R3 w - - 0 1)

Planck, Charles

English Mechanic and World of Science, 1884

(First published on Fri May 23 1884)

3n1Q2/8/3pk3/1p2N3/1P2BP2/5p2/K3bP2/4R3

#2

8 + 6

15351 SCPF/BCPS Black Books 2017
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Qf7#
    • 1...Sb7
      • 2.Qf7#
    • 1...Sf7
      • 2.Qxf7#
    • 1...d5
      • 2.Bf5#
  • Keys
    • 1.Bc6!
      • 1...Bc4+
        • 2.Sxc4#
      • 1...Sxc6
        • 2.Qf7#
      • 1...dxe5
        • 2.f5#
      • 1...Sf7
        • 2.Qxf7#
      • 1...Bd1
        • 2.f5#
      • 1...Bf1
        • 2.f5#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Sb7
        • 2.Qf7#
      • 1...d5
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD::QAB1(H)
    • S(f);N_GUARD::QAB1(H),XS(f)
    • P(d);SBLOCK::B(E)
  • Actual
    • B(E);
    • Vars
      • B(a);CHECK::R(A)+S(G),XB(a)
      • S(f);N_GUARD,XB(E)::QAB1(H)
      • P(d);SBLOCK,XS(G)::P(F)
      • S(f);N_GUARD::QAB1(H),XS(f)
      • B(a);::P(F)
      • B(a);::R(A)+S(G),XB(a)
      • S(f);N_GUARD::QAB1(H)
      • P(d);SBLOCK::B(E)
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