MESON Chess Problem Database

Problem Display
PID: 62499 (1b1Q4/3Kp1N1/5P2/2pNp3/2P1kpR1/1npr1p2/5B2/1B3b2 w - - 0 1)

Rossomakho, Yakov V

Revista Romana de Sah, 1979

1b1Q4/3Kp1N1/5P2/2pNp3/2P1kpR1/1npr1p2/5B2/1B3b2

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Sxc3#
    • 1...Sd4
      • 2.Sxc3#
  • Tries
    • 1.Bxd3+?
      • 1...Bxd3
        • 2.Sxc3#
      • 1...Kxd3!
    • 1.Qg8?
      • threat
        • 2.Qh7#
      • 1...Sd4
        • 2.Sxc3#
      • 1...exf6!
    • 1.Qh8?
      • threat
        • 2.Qh7#
      • 1...Sd4
        • 2.Sxc3#
      • 1...exf6!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qg6#
      • 1...exf6
        • 2.Rxf4#
      • 1...Sd4
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(k);N_PINS(E)::S(E),XP(c)
    • S(b);N_PINS(E)::S(E),XP(c)
  • Tries
    • Try
      • B(A);CHECK,N_SPINS(E),XR(d)
      • Vars
        • B(a);SBLOCK,XB(A)::S(E),XP(c)
      • Refutation
        • K(f);N_SPINP(g),S_FLIGHT,XB(A)
    • Try
      • Q(I);
      • Threat
        • QAB(I)
      • Vars
        • S(b);N_PINS(E)::S(E),XP(c)
      • Refutation
        • P(j);XP(F)
    • Try
      • Q(I);
      • Threat
        • QAB(I)
      • Vars
        • S(b);N_PINS(E)::S(E),XP(c)
      • Refutation
        • P(j);XP(F)
  • Actual
    • Q(I);
    • Threat
      • QAB(I)
    • Vars
      • P(j);S_CUTP(i),XP(F)::R1(D),XP(g)
      • S(b);N_PINS(E)::S(E),XP(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).