MESON Chess Problem Database

Problem Display
PID: 121457 (8/1p3K2/1Q1N4/3kp3/6P1/2p3P1/2P5/8 w - - 0 1)

Havelka, Frantisek

Lucan, 1899

8/1p3K2/1Q1N4/3kp3/6P1/2p3P1/2P5/8

#2

6 + 4

6490 yacpdb 2009
5454 Near Snap 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Se4?
      • 1...Kc4
        • 2.Qc5#
      • 1...Kxe4!
    • 1.Sxb7?
      • 1...Kc4
        • 2.Qc5#
      • 1...e4
        • 2.Qc5#
      • 1...Ke4!
  • Keys
    • 1.Sf5!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke4
        • 2.Qxb7#
      • 1...e4
        • 2.Qb5#

Anticipated by 55432(1895)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Vars
        • K(b);S_FLIGHT::QAR1(D)
      • Refutation
        • K(b);S_FLIGHT,XS(E)
    • Try
      • S(E);XP(d)
      • Vars
        • K(b);S_FLIGHT::QAR1(D)
        • P(c);SBLOCK::QAR1(D)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(b);S_FLIGHT::S(E)
      • K(b);S_FLIGHT::QAB(D),XP(d)
      • P(c);SBLOCK::QAR2(D)
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