MESON Chess Problem Database

Problem Display
PID: 45028 (7b/7b/Q7/3p1P2/2pk4/B5N1/P1n2K2/4N3 w - - 0 1)

Planck, Charles

Chess Monthly, 1885

7b/7b/Q7/3p1P2/2pk4/B5N1/P1n2K2/4N3

#2

7 + 6

3316 Chess Problem Text Book 1887
1099 WCSC 1985
5396 World Chess Solving Championship 1977-1996 1997
15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Qxf6#
    • 1...c3
      • 2.Sf3#
  • Tries
    • 1.Se2+?
      • 1...Ke5
        • 2.Qe6#
      • 1...Ke4!
  • Keys
    • 1.Qh6!
      • 1...Kc3
        • 2.Se2#
      • 1...Ke5
        • 2.Sf3#
      • 1...Bxf5
        • 2.Qxh8#
      • 1...Sxe1
        • 2.Qe3#
      • 1...Sxa3
        • 2.Qe3#
      • 1...Sb4
        • 2.Qe3#
      • 1...Bg6
        • 2.Qxh8#
      • 1...Bg8
        • 2.Qxh8#
      • 1...Be5
        • 2.Qd2#
      • 1...Bf6
        • 2.Qxf6#
      • 1...Bg7
        • 2.Qxg7#
      • 1...Sa1
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...c3
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • B(f);N_GUARD::QAB(G),XB(f)
    • P(b);SBLOCK::S(A)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(G)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(c);S_FLIGHT::S(E)
      • K(c);S_FLIGHT::S(A)
      • B(e);OGATE,XP(F)::QAB(G),XB(f)
      • S(a);N_GUARD,XS(A)::QAB1(G)
      • S(a);N_GUARD,XB(D)::QAB1(G)
      • S(a);N_GUARD::QAB1(G)
      • B(e);OGATE::QAB(G),XB(f)
      • B(f);SBLOCK::QAR2(G)
      • B(f);N_GUARD::QAB(G),XB(f)
      • S(a);N_GUARD::QAB1(G),XS(a)
      • P(b);SBLOCK::QAR2(G)
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