MESON Chess Problem Database

Problem Display
PID: 80217 (N1N1K3/1k6/1B6/1R4b1/3R4/8/8/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

4th HM., Mat Plus, 1995

N1N1K3/1k6/1B6/1R4b1/3R4/8/8/8

#2

6 + 2

5929 Mat Plus Special Issue 2006
6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Ba5+?
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Sa7#
      • 1...Kxc8
        • 2.Rc4#
      • 1...Kxa8!
    • 1.Bc5+?
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Sa7#
      • 1...Kxa8
        • 2.Ra4#
      • 1...Kxc8!
    • 1.Ba7+?
      • 1...Ka6
        • 2.Sc7#
      • 1...Kxa8
        • 2.Rb8#
      • 1...Kxc8
        • 2.Rc4#
        • 2.Rb8#
      • 1...Kc6!
    • 1.Bc7+?
      • 1...Kc6
        • 2.Sa7#
      • 1...Kxa8
        • 2.Ra4#
        • 2.Rb8#
      • 1...Kxc8
        • 2.Rb8#
      • 1...Ka6!
  • Keys
    • 1.Bd8+!
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Sa7#
      • 1...Kxa8
        • 2.Ra4#
      • 1...Kxc8
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(b);S_FLIGHT::S(D)
        • K(b);S_FLIGHT::S(E)
        • K(b);S_FLIGHT,XS(E)::R(A)
      • Refutation
        • K(b);S_FLIGHT,XS(D)
    • Try
      • B(C);CHECK
      • Vars
        • K(b);S_FLIGHT::S(D)
        • K(b);S_FLIGHT::S(E)
        • K(b);S_FLIGHT,XS(D)::R(A)
      • Refutation
        • K(b);S_FLIGHT,XS(E)
    • Try
      • B(C);CHECK
      • Vars
        • K(b);S_FLIGHT::S(D)
        • K(b);OGATE,S_FLIGHT,XS(D)::R1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(b);S_FLIGHT::S(E)
        • K(b);OGATE,S_FLIGHT,XS(E)::R1(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(C);CHECK
    • Vars
      • K(b);S_FLIGHT::S(D)
      • K(b);S_FLIGHT::S(E)
      • K(b);S_FLIGHT,XS(D)::R(A)
      • K(b);S_FLIGHT,XS(E)::R(A)
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