MESON Chess Problem Database

Problem Display
PID: 93405 (1r6/1rpp2B1/4RR2/N1p2p2/2nkP3/3n1P2/B2P1P2/2N2bK1 w - - 0 1)

Stocchi, Ottavio

Shakhmaty v SSSR, 1950

1r6/1rpp2B1/4RR2/N1p2p2/2nkP3/3n1P2/B2P1P2/2N2bK1

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Sxe2#
    • 1...Bg2
      • 2.Se2#
    • 1...Bh3
      • 2.Se2#
    • 1...Sb4
      • 2.Sab3#
    • 1...Se3
      • 2.fxe3#
    • 1...Sb6
      • 2.Scb3#
    • 1...dxe6
      • 2.Sc6#
    • 1...d5
      • 2.Sc6#
    • 1...d6
      • 2.Sc6#
  • Tries
    • 1.Rd6+?
      • 1...Sxd6
        • 2.Rxd6#
      • 1...cxd6
        • 2.Rxd6#
      • 1...Ke5!
    • 1.Rf7+?
      • 1...Sce5
        • 2.Rxd7#
      • 1...Sde5!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Rfd6#
      • 1...Ke5
        • 2.Rxf5#
      • 1...Sde5
        • 2.Sab3#
      • 1...Sce5
        • 2.Scb3#
      • 1...Sd6
        • 2.Rfxd6#
      • 1...d5
        • 2.Sc6#
      • 1...d6
        • 2.Sc6#
        • 2.Rfxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • B(a);N_GUARD::S(A),XB(a)
    • B(a);N_GUARD::S(A)
    • S(b);S_CUTR(g)::S(H)
    • S(c);OGATE::P(E),XS(c)
    • S(c);S_CUTR(g)::S(A)
    • P(i);N_GUARD,XR(I)::S(H)
    • P(i);N_GUARD::S(H)
  • Tries
    • Try
      • R(I);CHECK
      • Vars
        • S(c);OGATE,XR(I)::B(K)+R(J),DCHECK,XS(c)
        • P(h);OGATE,XR(I)::B(K)+R(J),DCHECK,XP(h)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(J);CHECK
      • Vars
        • S(c);P_SPINS(c)::R(J),XP(i)
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • R(I);
    • Threat
      • B(K)+R(J),DCHECK
    • Vars
      • K(d);S_FLIGHT::B(K)+R(J),DCHECK,XP(f)
      • S(b);SBLOCK::S(H)
      • S(c);SBLOCK::S(A)
      • S(c);::B(K)+R(J),DCHECK,XS(c)
      • P(i);N_GUARD::S(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).