MESON Chess Problem Database

Problem Display
PID: 34706 (n3KB2/3p4/N1P1RP2/1PpkPp2/R2Np1Q1/2P1p2b/7b/8 w - - 0 1)

Storozhenko, Ivan Ivanovich

1st HM., Uralski Problemist, 2000

n3KB2/3p4/N1P1RP2/1PpkPp2/R2Np1Q1/2P1p2b/7b/8

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Sc7#
    • 1...Sc7+
      • 2.Sxc7#
    • 1...c4
      • 2.Sb4#
  • Tries
    • 1.Qd1?
      • threat
        • 2.c4#
      • 1...Sc7+
        • 2.Sxc7#
      • 1...cxd4
        • 2.Qb3#
      • 1...dxe6
        • 2.Sf3#
      • 1...Sb6
        • 2.Sc7#
      • 1...c4
        • 2.Sb4#
      • 1...Bf1!
    • 1.Qg8?
      • threat
        • 2.Re7#
      • 1...Sc7+
        • 2.Sxc7#
      • 1...Bxe5
        • 2.Rd6#
      • 1...dxe6
        • 2.Qxe6#
      • 1...f4!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Rd6#
      • 1...Sc7+
        • 2.Sxc7#
      • 1...Kxe6
        • 2.Qg8#
      • 1...Bxe5
        • 2.Rxe5#
      • 1...exf3
        • 2.Qc4#
      • 1...dxe6
        • 2.c4#
      • 1...d6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • S(i);N_GUARD::S(G)
    • S(i);CHECK,N_GUARD::S(G),XS(i)
    • P(e);N_GUARD,SBLOCK::S(G)
  • Tries
    • Try
      • Q(D);
      • Threat
        • P(A)
      • Vars
        • S(i);CHECK,N_GUARD::S(G),XS(i)
        • P(e);N_GUARD,P_SPINP(e),XS(C)::QAB(D)
        • P(h);SBLOCK,XR(I)::QAR(D)+S(C)
        • S(i);N_GUARD::S(G)
        • P(e);N_GUARD,SBLOCK::S(G)
      • Refutation
        • B(c);
    • Try
      • Q(D);
      • Threat
        • QAB(D)+R(I)
      • Vars
        • S(i);CHECK,N_GUARD::S(G),XS(i)
        • B(a);SBLOCK,XP(F)::QAB(D)+R(I),DCHECK
        • P(h);OGATE,P_SPINP(h),XR(I)::QAB1(D),XP(h)
      • Refutation
        • P(g);
  • Actual
    • S(C);
    • Threat
      • R1(I)
    • Vars
      • S(i);CHECK,N_GUARD::S(G),XS(i)
      • K(f);OGATEB,P_SPINP(g),S_FLIGHT,XR(I)::QAB(D)
      • B(a);OGATE,XP(F)::R1(I),XB(a)
      • P(d);OGATE,XS(C)::QAB1(D)
      • P(h);SBLOCK,XR(I)::P(A)
      • P(h);::R1(I),XP(h)
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).