MESON Chess Problem Database

Problem Display
PID: 164967 (8/8/p1K5/kp6/1p6/1R6/P2N4/1R6 w - - 0 1)

Pozarski, A

Sachmatija, 2008

8/8/p1K5/kp6/1p6/1R6/P2N4/1R6

#2

5 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4+?
      • 1...Ka4
        • 2.Rxb4#
      • 1...bxc4!
    • 1.a3?
      • 1...bxa3
        • 2.Rxa3#
      • 1...Ka4!
  • Keys
    • 1.a4!
      • 1...Kxa4
        • 2.Ra1#
      • 1...bxa4
        • 2.Sc4#
      • 1...bxa4 ep
        • 2.Rxa3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::R1(D),XP(a)
      • Refutation
        • P(c);XS(C)
    • Try
      • P(B);
      • Vars
        • P(a);OGATE,XP(B)::R(D),XP(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • P(B);
    • Vars
      • K(b);OGATEB,P-FLIGHT,XP(B)::R(A)
      • P(c);N_GUARD,SBLOCK,XP(B)::S(C)
      • P(a);EP,OGATEB,XP(B)::R(D),XP(a)
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