MESON Chess Problem Database

Problem Display
PID: 171460 (8/7B/6R1/8/4k3/8/Q3PP2/K7 w - - 0 1)

Antipov, Viacheslav Pavlovich

Shakh-M (Borovich), 1998

8/7B/6R1/8/4k3/8/Q3PP2/K7

#2

6 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rg5+?
      • 1...Kf4
        • 2.Qd2#
      • 1...Kd4!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Re6#
      • 1...Kf5!
    • 1.Qd5+?
      • 1...Kf4
        • 2.e3#
      • 1...Kxd5!
    • 1.Qe6+?
      • 1...Kf4
        • 2.Rg4#
      • 1...Kd4!
    • 1.Qa5?
      • threat
        • 2.Rg4#
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf4!
  • Keys
    • 1.e3!
      • 1...Kd3
        • 2.Rc6#
      • 1...Kf3
        • 2.Rg3#
      • 1...Ke5
        • 2.Re6#
        • 2.Qe6#
      • 1...Kf5
        • 2.Qd5#
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • B(F)+R(E),DCHECK
      • Vars
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(C);
    • Vars
      • K(a);S_FLIGHT::B(F)+R(E)
      • K(a);S_FLIGHT::R1(E)
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