MESON Chess Problem Database

Problem Display
PID: 104373 (8/8/4p3/1Kp5/3k4/5Q1N/8/3N4 w - - 0 1)

Khramtsevich, Mikhail Nikolaevich

Lebedev, Leonid Arsentevich

Zvezda, 1984

8/8/4p3/1Kp5/3k4/5Q1N/8/3N4

#2

4 + 3

6490 yacpdb 2009
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3?
      • 1...Ke5
        • 2.Qf4#
      • 1...e5
        • 2.Se2#
      • 1...c4!
    • 1.Qf4+?
      • 1...Kd5
        • 2.Sc3#
        • 2.Se3#
      • 1...Kd3!
  • Keys
    • 1.Kc6!
      • 1...Kc4
        • 2.Qc3#
      • 1...Ke5
        • 2.Qf4#
      • 1...c4
        • 2.Qe3#
      • 1...e5
        • 2.Qd5#

This anticipates 196242(1986)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • P(c);SBLOCK::S(A)
      • Refutation
        • P(b);
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • P(b);SBLOCK::QAB1(B)
      • P(c);N_GUARD::QAR1(B)
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