Problem Display
PID: 235634 (3R4/4B2B/1p3pN1/3P2P1/2pk4/K1RP3N/3P4/6n1 w - - 0 1)

Erokhin, Vladimir Alekseevich

Mat, 1985

3R4/4B2B/1p3pN1/3P2P1/2pk4/K1RP3N/3P4/6n1

#2

11 + 5


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Tries
    • 1.Kb4?
      • threat
        • 2.Bxf6#
      • 1...cxd3
        • 2.Rc4#
      • 1...fxg5
        • 2.Bf6#
      • 1...f5
        • 2.Bf6#
      • 1...Sf3!
    • 1.Sf2?
      • threat
        • 2.Rxc4#
      • 1...cxd3
        • 2.Bxf6#
      • 1...b5!
    • 1.Shf4?
      • threat
        • 2.Se6#
        • 2.Rxc4#
      • 1...b5
        • 2.Se6#
      • 1...cxd3!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sc6#
      • 1...Kxe5
        • 2.Bxf6#
      • 1...fxe5
        • 2.Rxc4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • B(I),XP(e)
      • Vars
        • P(b);SBLOCK,XP(D)::R1(C)
        • P(e);XP(G)::B(I)
        • P(e);::B(I)
      • Refutation
        • S(a);
    • Try
      • S(E);
      • Threat
        • R1(C),XP(b)
      • Vars
        • P(b);XP(D)::B(I),XP(e)
      • Refutation
        • P(d);
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::S(E)
      • Refutation
        • P(b);XP(D)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(H)::B(I),XP(e)
      • P(e);SBLOCK,XS(H)::R1(C),XP(b)


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).