MESON Chess Problem Database

Problem Display
PID: 171314 (8/4KNN1/8/8/4kp2/3R4/2B5/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Za Ogneypori, 1990

8/4KNN1/8/8/4kp2/3R4/2B5/8

#2

5 + 2

6490 yacpdb 2018
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sh5?
      • 1...Kf5
        • 2.Rg3#
      • 1...f3!
    • 1.Se6?
      • 1...Kf5
        • 2.Rg3#
      • 1...f3!
    • 1.Se8?
      • threat
        • 2.Sed6#
      • 1...Kf5
        • 2.Rg3#
      • 1...f3!
  • Keys
    • 1.Sf5!
      • threat
        • 2.S5d6#
      • 1...Kxf5
        • 2.Rg3#
      • 1...f3
        • 2.Rd4#

Anticipated by 221924(1967)

There are these versions: 171427

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::B(A)+R(B)
      • Refutation
        • P(b);
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::B(A)+R(B)
      • Refutation
        • P(b);
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • K(a);S_FLIGHT::B(A)+R(B)
      • Refutation
        • P(b);
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(a);S_FLIGHT,XS(E)::B(A)+R(B)
      • P(b);SBLOCK::B(A)+R(B),DCHECK
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