MESON Chess Problem Database

Problem Display
PID: 265408 (8/8/4p1B1/6B1/2Pk4/8/8/2K2Q2 w - - 0 1)

Matrenin, Mikhail Vasilevich

Melnichuk, Aleksandr Nikolaevich

Zadachi i Etyudi, 2010

8/8/4p1B1/6B1/2Pk4/8/8/2K2Q2

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qf4#
  • Tries
    • 1.Kd2?
      • 1...Ke5
        • 2.Qf4#
      • 1...e5
        • 2.Be3#
      • 1...Kc5!
  • Keys
    • 1.Be7!
      • 1...Kc3
        • 2.Qd3#
      • 1...Ke3
        • 2.Bc5#
      • 1...Ke5
        • 2.Qf6#
      • 1...e5
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::QAB1(B)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(B)
        • P(b);SBLOCK::B(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::QAR1(B)
      • K(a);N_GUARD,S_FLIGHT::B(D)
      • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(B)
      • P(b);SBLOCK::QAR1(B)
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