MESON Chess Problem Database

Problem Display
PID: 110386 (3R4/2Q5/2p2p2/2N2k1K/2P5/8/3P4/8 w - - 0 1)

Mlynka, Karol

Lokker MT, 2000

3R4/2Q5/2p2p2/2N2k1K/2P5/8/3P4/8

#2

6 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • 1...Ke4
        • 2.Qf4#
      • 1...Ke6
        • 2.Qd7#
      • 1...c5!
    • 1.Qe5+?
      • 1...fxe5
        • 2.Rf8#
      • 1...Kxe5!
    • 1.Qxc6?
      • threat
        • 2.Qe4#
      • 1...Ke5
        • 2.Qe4#
      • 1...Kf4!
    • 1.Qh7+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kf4!
  • Keys
    • 1.Rd6!
      • 1...Kf4
        • 2.Rxf6#
      • 1...Ke5
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • P(b);
    • Try
      • Q(E);CHECK
      • Vars
        • P(c);SBLOCK,XQ(E)::R(F)
      • Refutation
        • K(a);P-FLIGHT,XQ(E)
    • Try
      • Q(E);XP(b)
      • Threat
        • QAB1(E)
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(a);P-FLIGHT::QAB(E)+R(F),DCHECK,XP(c)
      • K(a);P-FLIGHT::QAB(E)+R(F),DCHECK
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