MESON Chess Problem Database

Problem Display
PID: 172456 (7R/B7/8/4Q3/6kb/8/4K3/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Vecherni Krasnodar, 1997

7R/B7/8/4Q3/6kb/8/4K3/8

#2

4 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Be3?
      • 1...Be1
        • 2.Qf4#
        • 2.Qg5#
      • 1...Bf2
        • 2.Qf4#
        • 2.Qg5#
      • 1...Bg3
        • 2.Qg5#
        • 2.Qh5#
        • 2.Qe6#
      • 1...Bg5
        • 2.Qxg5#
      • 1...Bf6
        • 2.Qf4#
      • 1...Be7
        • 2.Qf4#
      • 1...Bd8
        • 2.Qf4#
      • 1...Kh3!
  • Keys
    • 1.Bb8!
      • 1...Kh3
        • 2.Qg3#
      • 1...Be1
        • 2.Qf4#
        • 2.Qh5#
      • 1...Bf2
        • 2.Qf4#
        • 2.Qh5#
      • 1...Bg3
        • 2.Qh5#
      • 1...Bg5
        • 2.Qe6#
      • 1...Bf6
        • 2.Qf4#
        • 2.Qh5#
      • 1...Be7
        • 2.Qf4#
        • 2.Qh5#
      • 1...Bd8
        • 2.Qf4#
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Vars
        • B(b);N_GUARD::QAR1(B),XB(b)
        • B(b);::QAR1(B)
      • Refutation
        • K(a);P_SPINB(b),S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • K(a);P_SPINB(b),S_FLIGHT::QAR1(B)
      • B(b);::QAB1(B)
      • B(b);SBLOCK::QAB(B)
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