MESON Chess Problem Database

Problem Display
PID: 174526 (8/1p6/4PKp1/2p3p1/2b1kB2/3RPp2/1N1pp3/7Q w - - 0 1)

Rushlevich, Aleksandr

Volchek, Viktor Fedorovich

HM., Inform.Progulka, 2009-2010

8/1p6/4PKp1/2p3p1/2b1kB2/3RPp2/1N1pp3/7Q

#2

7 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sa4?
      • threat
        • 2.Sxc5#
      • 1...Kxd3
        • 2.Qb1#
      • 1...Bxd3
        • 2.Sc3#
      • 1...b6!
    • 1.Qb1?
      • threat
        • 2.Rd4#
      • 1...Bxd3
        • 2.Qxd3#
      • 1...f2
        • 2.Qh1#
      • 1...gxf4!
    • 1.Qh7?
      • threat
        • 2.Qxg6#
      • 1...Bxd3
        • 2.Qxb7#
      • 1...f2
        • 2.Qh1#
      • 1...Bxe6!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Re5#
      • 1...Kxd5
        • 2.Qxf3#
      • 1...Bxd5
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B),XP(f)
      • Vars
        • K(e);N_SPINP(c),OGATEB,S_FLIGHT,XR(C)::QAB(A)
        • B(d);SBLOCK,XR(C)::S(B)
      • Refutation
        • P(i);
    • Try
      • Q(A);N_PINP(c)
      • Threat
        • QAB(A)+R(C),DCHECK
      • Vars
        • B(d);OGATE,P_SPINB(d),XR(C)::QAB1(A),XB(d)
        • P(c);OGATEB::QAB(A)
      • Refutation
        • P(g);XB(E)
    • Try
      • Q(A);N_PINP(c),P_PINP(h)
      • Threat
        • QAB(A),XP(h)
      • Vars
        • B(d);N_GUARD,XR(C)::QAB(A),XP(i)
        • P(c);OGATEB::QAB(A)
      • Refutation
        • B(d);XP(F)
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • K(e);S_FLIGHT,XR(C)::QAB(A),XP(c)
      • B(d);N_GUARD,SBLOCK,XR(C)::QAB(A)
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).