MESON Chess Problem Database

Problem Display
PID: 239211 (8/8/8/8/1B1N4/7K/3R4/3Bk3 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

L'Italia Scacchistica, 1997

8/8/8/8/1B1N4/7K/3R4/3Bk3

#2

5 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Ra2+?
      • 1...Kxd1
        • 2.Ra1#
      • 1...Kf1!
    • 1.Rb2+?
      • 1...Kxd1
        • 2.Rb1#
      • 1...Kf1!
    • 1.Re2+?
      • 1...Kxd1
        • 2.Re1#
      • 1...Kf1!
    • 1.Rf2+?
      • 1...Kxd1
        • 2.Rf1#
      • 1...Kxf2!
    • 1.Rh2+?
      • 1...Kxd1
        • 2.Rh1#
      • 1...Kf1!
  • Keys
    • 1.Rg2+!
      • 1...Kxd1
        • 2.Rg1#
      • 1...Kf1
        • 2.Be2#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(A)::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(A)::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(A)::R1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(A)::R(B)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(A)::R(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(B);CHECK
    • Vars
      • K(a);P-FLIGHT,XB(A)::R(B)
      • K(a);P-FLIGHT::B(A)
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