MESON Chess Problem Database

Problem Display
PID: 161521 (3B4/8/8/1K6/5Q2/7B/3pk3/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1996

3B4/8/8/1K6/5Q2/7B/3pk3/8

#2

4 + 2

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Ke1
      • 2.Qf1#
  • Tries
    • 1.Bg4+?
      • 1...Ke1
        • 2.Bh4#
      • 1...Kd3!
    • 1.Qf3+?
      • 1...Ke1
        • 2.Bh4#
        • 2.Qf1#
      • 1...Kxf3!
  • Keys
    • 1.Bg5!
      • threat
        • 2.Qf1#
      • 1...Kd1
        • 2.Qxd2#
      • 1...Ke1
        • 2.Qxd2#
        • 2.Qf1#
      • 1...Kd3
        • 2.Qc4#
      • 1...d1Q
        • 2.Qe3#
      • 1...d1R
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(b);P-FLIGHT::B(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(B)
  • Actual
    • B(D);
    • Threat
      • QAB1(B)
    • Vars
      • K(b);S_FLIGHT::QAR1(B),XP(a)
      • K(b);S_FLIGHT::QAB1(B)
      • P(a);SBLOCK::QAR1(B)
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