MESON Chess Problem Database

Problem Display
PID: 221707 (8/8/5R2/2PRpPr1/B1b1k1p1/4p1K1/8/B7 w - - 0 1)

Bylevski, Aleksandr

Sachova skladba, 1993

8/8/5R2/2PRpPr1/B1b1k1p1/4p1K1/8/B7

#2

7 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Rxe5#
    • 1...Bxd5
      • 2.Bc2#
  • Tries
    • 1.Bc2+?
      • 1...Bd3
        • 2.Rxe5#
      • 1...Kxd5!
    • 1.Rfd6?
      • threat
        • 2.Rxe5#
      • 1...Kxf5
        • 2.Rxe5#
      • 1...Bxd5
        • 2.Bc2#
      • 1...Rxf5!
  • Keys
    • 1.Re6!
      • threat
        • 2.Rexe5#
      • 1...Kxd5
        • 2.Rxe5#
      • 1...Kxf5
        • 2.Rdxe5#
      • 1...Rxf5
        • 2.Rd4#
      • 1...Bxd5
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(b);SBLOCK::R1(E),XP(e)
    • B(b);N_GUARD,SBLOCK,XR(E)::B(C)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • B(b);P_SPINB(b)::R1(E),XP(e)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • R(G);
      • Threat
        • R1(E),XP(e)
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT,XP(F)::R1(E),XP(e)
        • B(b);N_GUARD,XR(E)::B(C)
      • Refutation
        • R(f);XP(F)
  • Actual
    • R(G);P_PINP(e)
    • Threat
      • R1(G),XP(e)
    • Vars
      • K(c);N_SPINP(e),S_FLIGHT,XR(E)::R1(G),XP(e)
      • K(c);S_FLIGHT,XP(F)::R1(E),XP(e)
      • R(f);SBLOCK,XP(F)::R1(E)
      • B(b);N_GUARD,SBLOCK,XR(E)::B(C)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).