MESON Chess Problem Database

Problem Display
PID: 9980 (8/8/5P1p/8/R1B1N1kB/4PN2/8/4RK2 w - - 0 1)

Issler, Werner

3rd Prize, Die Schwalbe, 1961

8/8/5P1p/8/R1B1N1kB/4PN2/8/4RK2

#2

9 + 2

15257 Kunstwerke auf 64 Feldern (1922-1966) (Ott, Kummer, Schudel) 1968
45 Schach 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Kh3
      • 2.Sf2#
      • 2.Be6#
  • Tries
    • 1.Sed2?
      • 1...Kh3
        • 2.Be6#
      • 1...Kh5
        • 2.Bf7#
      • 1...h5
        • 2.Be6#
      • 1...Kf5!
    • 1.Sf2+?
      • 1...Kxf3
        • 2.Bd5#
      • 1...Kh5
        • 2.Bf7#
      • 1...Kf5!
    • 1.Sg3?
      • 1...Kxf3
        • 2.Bd5#
      • 1...Kh3
        • 2.Be6#
      • 1...h5!
    • 1.Sc5?
      • 1...Kxf3
        • 2.Bd5#
      • 1...Kh3
        • 2.Be6#
      • 1...Kf5
        • 2.Bd3#
      • 1...Kh5
        • 2.Bf7#
      • 1...h5!
    • 1.Sd6?
      • 1...Kxf3
        • 2.Bd5#
      • 1...Kh3
        • 2.Be6#
      • 1...Kh5
        • 2.Bf7#
      • 1...h5!
    • 1.Be6+?
      • 1...Kxf3
        • 2.Sd2#
      • 1...Kh5!
    • 1.Bf7?
      • 1...Kxf3
        • 2.Sd2#
        • 2.Bh5#
      • 1...Kh3
        • 2.Sf2#
        • 2.Be6#
      • 1...Kf5
        • 2.Sg3#
        • 2.Sd6#
      • 1...h5!
  • Keys
    • 1.Bd3!
      • 1...Kxf3
        • 2.Sd2#
      • 1...Kh3
        • 2.Sf2#
      • 1...Kf5
        • 2.Sc5#
      • 1...Kh5
        • 2.Sg3#
      • 1...h5
        • 2.Seg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Vars
        • K(a);S_FLIGHT::B(F)
        • P(b);SBLOCK::R(E)+B(F),DCHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(D)::B(F)
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(G);
      • Vars
        • K(a);S_FLIGHT,XS(D)::B(F)
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • P(b);
    • Try
      • S(G);
      • Vars
        • K(a);S_FLIGHT,XS(D)::B(F)
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • P(b);
    • Try
      • S(G);
      • Vars
        • K(a);S_FLIGHT,XS(D)::B(F)
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • P(b);
    • Try
      • B(F);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(D)::S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Refutation
        • P(b);
  • Actual
    • B(F);
    • Vars
      • K(a);S_FLIGHT,XS(D)::S(G)
      • K(a);S_FLIGHT::S(G)
      • K(a);S_FLIGHT::B(F)+S(G)
      • P(b);SBLOCK::R(E)+S(G)
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