MESON Chess Problem Database

Problem Display
PID: 172490 (5K1N/8/4pk2/5p2/8/8/5B2/5Q2 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2001

5K1N/8/4pk2/5p2/8/8/5B2/5Q2

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Be3?
      • 1...f4
        • 2.Qxf4#
      • 1...e5
        • 2.Qa6#
      • 1...Ke5!
    • 1.Qc1?
      • 1...f4
        • 2.Qxf4#
      • 1...e5
        • 2.Qh6#
      • 1...Ke5!
  • Keys
    • 1.Qc4!
      • 1...Ke5
        • 2.Qd4#
      • 1...Kg5
        • 2.Qh4#
      • 1...f4
        • 2.Qxf4#
      • 1...e5
        • 2.Bh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);P_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
        • P(b);OGATEB,SBLOCK::QAR(A)
      • Refutation
        • K(c);N_SPINP(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
        • P(b);SBLOCK::QAR2(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(c);S_FLIGHT::QAB1(A)
      • P(a);OGATEB::QAR2(A),XP(a)
      • P(b);SBLOCK::B(B)
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