MESON Chess Problem Database

Problem Display
PID: 9619 (8/2P2R2/5N2/3P1kNR/8/7K/8/8 w - - 0 1)

Shinkman, William Anthony

Bauernumwandlungaufsgaben, 1907

8/2P2R2/5N2/3P1kNR/8/7K/8/8

#2

7 + 1

15 British Chess Magazine 1911
1829 The Theory of Pawn Promotion 1912
3925 The Golden Argosy 1929
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Sg4#
  • Tries
    • 1.Sf3+?
      • 1...Kg6
        • 2.Se5#
      • 1...Kf4!
    • 1.c8Q+?
      • 1...Kf4
        • 2.Sg4#
      • 1...Kg6
        • 2.Qc2#
      • 1...Ke5!
  • Keys
    • 1.c8S!
      • 1...Kf4
        • 2.Sg4#
      • 1...Ke5
        • 2.Se6#
      • 1...Kg6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(G)+S(E)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(F);CHECK
      • Vars
        • K(a);P-FLIGHT::R(G)+S(E)
        • K(a);S_FLIGHT::QAB(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(F);
    • Vars
      • K(a);P-FLIGHT::R(G)+S(E)
      • K(a);P-FLIGHT::R(D)+S(C)
      • K(a);S_FLIGHT::S(F)
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