MESON Chess Problem Database

Problem Display
PID: 221362 (3K4/8/1Q1p2P1/3Nk3/7P/4p1NP/1P2P3/8 w - - 0 1)

Jancek, Julius

Praca Prvotina, 1953

3K4/8/1Q1p2P1/3Nk3/7P/4p1NP/1P2P3/8

#2

9 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kc7?
      • 1...Ke6
        • 2.Qxd6#
      • 1...Kxd5!
    • 1.Qd4+?
      • 1...Ke6
        • 2.Sf4#
        • 2.Sc7#
        • 2.Qe4#
      • 1...Kxd4!
    • 1.Qb4?
      • threat
        • 2.Qe4#
      • 1...Ke6
        • 2.Qe4#
      • 1...Kxd5!
    • 1.Qxd6+?
      • 1...Kd4
        • 2.Sb6#
      • 1...Kxd6!
  • Keys
    • 1.Sf4!
      • 1...Kxf4
        • 2.Qxd6#
      • 1...Kf6
        • 2.Qd4#
      • 1...d5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(I);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::QAR1(G),XP(c)
      • Refutation
        • K(b);P-FLIGHT,XS(F)
    • Try
      • Q(G);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • K(b);P-FLIGHT::QAR2(G)
      • Refutation
        • K(b);P-FLIGHT,XS(F)
    • Try
      • Q(G);CHECK,XP(c)
      • Vars
        • K(b);S_FLIGHT::QAR(G)+S(F)
      • Refutation
        • K(b);S_FLIGHT,XQ(G)
  • Actual
    • S(F);
    • Vars
      • K(b);S_FLIGHT,XS(F)::QAB(G),XP(c)
      • K(b);P_SPINP(c),S_FLIGHT::QAB(G)
      • P(c);SBLOCK::S(F)
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