MESON Chess Problem Database

Problem Display
PID: 151704 (4R2B/7N/6p1/pK3PP1/R1PP1k2/5p2/5N1P/8 w - - 0 1)

Alekseev, Yuri Mikhailovich

Russian Championship, 2012

4R2B/7N/6p1/pK3PP1/R1PP1k2/5p2/5N1P/8

#2

11 + 4

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Ra3?
      • 1...Kxf5
        • 2.Rxf3#
      • 1...gxf5
        • 2.Be5#
      • 1...a4!
    • 1.Re1?
      • 1...gxf5
        • 2.Be5#
      • 1...Kxf5!
    • 1.Re6?
      • 1...Kxf5
        • 2.Rf6#
      • 1...gxf5!
    • 1.c5?
      • 1...gxf5
        • 2.d5#
      • 1...Kxf5!
  • Keys
    • 1.d5!
      • 1...Kxf5
        • 2.Rf8#
      • 1...gxf5
        • 2.c5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Vars
        • K(b);P-FLIGHT,XP(G)::R(C),XP(a)
        • P(d);SBLOCK,XP(G)::B(K)
      • Refutation
        • P(c);
    • Try
      • R(J);
      • Vars
        • P(d);SBLOCK,XP(G)::B(K)
      • Refutation
        • K(b);P-FLIGHT,XP(G)
    • Try
      • R(J);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(G)::R1(J)
      • Refutation
        • P(d);XP(G)
    • Try
      • P(D);
      • Vars
        • P(d);SBLOCK,XP(G)::R(C)+P(E)
      • Refutation
        • K(b);P-FLIGHT,XP(G)
  • Actual
    • P(E);
    • Vars
      • K(b);OGATEB,P-FLIGHT,XP(G)::R(J)
      • P(d);SBLOCK,XP(G)::R(C)+P(D)
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