MESON Chess Problem Database

Problem Display
PID: 200320 (3R4/2p5/6p1/p1P1b1R1/N1p1k3/1n2P2B/4P1K1/3N4 w - - 0 1)

Hynonen, Veikko August

Suomen Shakki, 1957

3R4/2p5/6p1/p1P1b1R1/N1p1k3/1n2P2B/4P1K1/3N4

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Sac3#
    • 1...Bc3
      • 2.Saxc3#
    • 1...Bg3
      • 2.Sac3#
    • 1...Bf4
      • 2.Sac3#
    • 1...Bd6
      • 2.Sac3#
    • 1...Sd4
      • 2.Sac3#
    • 1...Sxc5
      • 2.Sxc5#
  • Tries
    • 1.Kf1?
      • threat
        • 2.Bg2#
      • 1...Sd4
        • 2.Sac3#
      • 1...Sd2+!
    • 1.Kh1?
      • threat
        • 2.Bg2#
      • 1...Sd4
        • 2.Sac3#
      • 1...Sd2!
    • 1.Bg4?
      • threat
        • 2.Bf3#
      • 1...Sd4
        • 2.Sac3#
      • 1...Sd2!
    • 1.Rd3?
      • threat
        • 2.Sf2#
      • 1...Sd4
        • 2.Sdc3#
        • 2.Sac3#
      • 1...Bg3
        • 2.Sdc3#
        • 2.Sac3#
      • 1...cxd3!
    • 1.Rd4+?
      • 1...Sxd4
        • 2.Sac3#
      • 1...Bxd4!
    • 1.Re8?
      • threat
        • 2.Sac3#
        • 2.Rgxe5#
        • 2.Rexe5#
      • 1...c3
        • 2.Saxc3#
        • 2.Rgxe5#
        • 2.Rexe5#
      • 1...Kd5!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Bc6#
      • 1...Kd5
        • 2.Sdc3#
      • 1...Sd4
        • 2.Sac3#
      • 1...c6
        • 2.Bxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(e);N_GUARD::S(F)
    • B(e);N_GUARD::S(F),XB(e)
    • S(a);S_CUTB(e)::S(F)
    • S(a);XP(G)::S(F),XS(a)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • B(E)
      • Vars
        • S(a);S_CUTB(e)::S(F)
      • Refutation
        • S(a);CHECK
    • Try
      • K(C);S_FLIGHT
      • Threat
        • B(E)
      • Vars
        • S(a);S_CUTB(e)::S(F)
      • Refutation
        • S(a);
    • Try
      • B(E);
      • Threat
        • B(E)
      • Vars
        • S(a);S_CUTB(e)::S(F)
      • Refutation
        • S(a);
    • Try
      • R(I);
      • Threat
        • S(A)
      • Refutation
        • P(b);XR(I)
    • Try
      • R(I);CHECK
      • Vars
        • S(a);XR(I)::S(F)
      • Refutation
        • B(e);XR(I)
    • Try
      • R(I);P_PINB(e)
      • Threat
        • DUALS(3)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • B(E);
    • Threat
      • B(E)
    • Vars
      • K(c);P_SPINB(e),S_FLIGHT::S(A)
      • S(a);S_CUTB(e)::S(F)
      • P(g);::B(E),XP(g)
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).