MESON Chess Problem Database

Problem Display
PID: 165001 (7Q/4p3/4B3/1pr1P1P1/1pp1k3/1pb2R1P/1p2N1P1/1K6 w - - 0 1)

Udartsev, Valentin Filipovich

Novi Temi, 1980

7Q/4p3/4B3/1pr1P1P1/1pp1k3/1pb2R1P/1p2N1P1/1K6

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Bf5#
    • 1...Rxe5
      • 2.Qh4#
    • 1...Bd4
      • 2.Sg3#
    • 1...Bxe5
      • 2.Qh7#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Qf4#
        • 2.Qf5#
      • 1...Rxe5
        • 2.Qf4#
      • 1...Bxe5
        • 2.Qf5#
        • 2.Qg6#
      • 1...Bd2
        • 2.Qf5#
      • 1...exf6!
    • 1.Qf8?
      • threat
        • 2.Qf4#
        • 2.Qf5#
      • 1...Rxe5
        • 2.Qf4#
      • 1...Bxe5
        • 2.Qf5#
      • 1...Bd2
        • 2.Qf5#
      • 1...Kxe5!
  • Keys
    • 1.Qd8!
      • 1...Kxe5
        • 2.Re3#
      • 1...Rxe5
        • 2.Sg3#
      • 1...Bxe5
        • 2.Bf5#
      • 1...Rc6
        • 2.Qd5#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Rc7
        • 2.Qd5#
      • 1...Rc8
        • 2.Qd5#
      • 1...Be1
        • 2.Qd4#
      • 1...Bd2
        • 2.Qd4#
      • 1...Bd4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 4
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(h);SBLOCK::B(H)
    • R(h);SBLOCK,XP(F)::QAR(I)
    • B(c);SBLOCK::S(B)
    • B(c);SBLOCK,XP(F)::QAB(I)
  • Tries
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);XP(F)::QAR1(I)
        • B(c);::QAB1(I)
      • Refutation
        • P(i);XQ(I)
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);XP(F)::QAR1(I)
        • B(c);XP(F)::QAB1(I)
        • B(c);::QAB1(I)
      • Refutation
        • K(f);P-FLIGHT,XP(F)
  • Actual
    • Q(I);
    • Vars
      • K(f);P-FLIGHT,XP(F)::R(D)
      • R(h);SBLOCK,XP(F)::S(B)
      • B(c);SBLOCK,XP(F)::B(H)
      • R(h);N_GUARD::QAB1(I)
      • R(h);N_GUARD::QAB1(I),XR(h)
      • B(c);N_GUARD::QAR1(I)
      • B(c);N_GUARD::QAR1(I),XB(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).