MESON Chess Problem Database

Problem Display
PID: 227173 (3n4/1p3p2/1P1B1P1R/3k4/P1N5/3N3p/QP5K/3R1B2 w - - 0 1)

Katz, S Marcus

Sunday Chronicle, 1946

(First published on Sun Jul 28 1946)

3n4/1p3p2/1P1B1P1R/3k4/P1N5/3N3p/QP5K/3R1B2

#2

12 + 5

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sf2#
      • 2.Sc5#
    • 1...Kc6
      • 2.Sde5#
  • Tries
    • 1.Se1+?
      • 1...Ke4
        • 2.Qb1#
      • 1...Ke6
        • 2.Bxh3#
      • 1...Kc6!
    • 1.Sf2+?
      • 1...Ke6
        • 2.Bxh3#
      • 1...Kc6!
    • 1.Sb4+?
      • 1...Ke6
        • 2.Bxh3#
      • 1...Ke4!
    • 1.Sde5+?
      • 1...Ke6
        • 2.Se3#
        • 2.Bxh3#
      • 1...Ke4!
  • Keys
    • 1.Qb1!
      • 1...Kxc4
        • 2.Sc1#
      • 1...Kd4
        • 2.Sc1#
        • 2.Se1#
        • 2.Sf2#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sc5#
        • 2.Sde5#
      • 1...Ke4
        • 2.Se1#
      • 1...Kc6
        • 2.Sde5#
      • 1...Ke6
        • 2.Sc5#
      • 1...Sc6
        • 2.Sf4#
      • 1...Se6
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::S(F)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(C)
        • K(b);S_FLIGHT::B(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(b);S_FLIGHT::B(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(b);S_FLIGHT::B(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT,XS(H)::B(B)+S(F)
      • K(b);S_FLIGHT::QAB(C)+S(F)
      • K(b);S_FLIGHT::S(F)
      • S(e);SBLOCK::R(A)+S(F),DCHECK
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