MESON Chess Problem Database

Problem Display
PID: 159496 (8/8/6R1/1K1pk3/8/8/2QP2N1/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Schach (Borovich), 1986

8/8/6R1/1K1pk3/8/8/2QP2N1/8

#2

5 + 2

15148 Sadier Collection 2016
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Se3?
      • 1...Kf4
        • 2.Qf5#
      • 1...d4
        • 2.Qf5#
      • 1...Kd4!
    • 1.Re6+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kxe6!
    • 1.Qf5+?
      • 1...Kd4
        • 2.Rg4#
      • 1...Kxf5!
    • 1.d3?
      • 1...Kf5
        • 2.d4#
      • 1...d4
        • 2.Qc5#
      • 1...Kd4!
  • Keys
    • 1.Sh4!
      • 1...Kd4
        • 2.Sf3#
      • 1...Kf4
        • 2.Qf5#
      • 1...d4
        • 2.Qf5#

This anticipates 239224(2002)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • P(a);SBLOCK::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,XR(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::R(E)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
    • Try
      • P(B);
      • Vars
        • K(b);P-FLIGHT::QAB(A)+P(B)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(b);S_FLIGHT::S(C)
      • K(b);S_FLIGHT::QAR1(A)
      • P(a);SBLOCK::QAR1(A)
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