MESON Chess Problem Database

Problem Display
PID: 219036 (4N3/2Q2p2/p5pR/Rp3Nk1/3P2p1/6p1/6P1/3K4 w - - 0 1)

Kondelik, Karel

Vsemirnaya Illustrantiya, 1882

4N3/2Q2p2/p5pR/Rp3Nk1/3P2p1/6p1/6P1/3K4

#2

8 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf5
      • 2.Qe5#
    • 1...b4
      • 2.Qc1#
  • Tries
    • 1.Sfd6?
      • threat
        • 2.Qc1#
      • 1...Kf4
        • 2.Qc1#
      • 1...f5
        • 2.Sf7#
      • 1...Kxh6!
  • Keys
    • 1.Sed6!
      • 1...Kf4
        • 2.Qc1#
      • 1...Kf6
        • 2.Qe7#
      • 1...gxf5
        • 2.Sxf7#
      • 1...b4
        • 2.Se4#
      • 1...f6
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(d);OGATEB,P-FLIGHT,P_SPINP(c),XS(E)::QAR1(G)
    • P(c);::QAB(G)
  • Tries
    • Try
      • S(E);P_PINP(c)
      • Threat
        • QAB(G)
      • Vars
        • K(d);N_SPINP(c),S_FLIGHT::QAB(G)
        • P(g);N_SPINP(c),SBLOCK::S(E)
      • Refutation
        • K(d);N_SPINP(c),S_FLIGHT,XR(F)
  • Actual
    • S(H);
    • Vars
      • K(d);S_FLIGHT::QAB(G)
      • K(d);P_SPINP(f),S_FLIGHT::QAB1(G)
      • P(f);SBLOCK,XS(E)::S(H),XP(g)
      • P(c);::S(H)
      • P(g);SBLOCK::QAB(G)
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