MESON Chess Problem Database

Problem Display
PID: 216186 (5B2/2p1N3/4ppp1/2P1k3/6r1/2p1NPb1/4K3/3R4 w - - 0 1)

Sardotsch, Nicolo

Sammlung Leichterer Schachaufgaben, 1881

5B2/2p1N3/4ppp1/2P1k3/6r1/2p1NPb1/4K3/3R4

#2

7 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Sxg6#
    • 1...Rb4
      • 2.Sxg6#
    • 1...Rc4
      • 2.Sxg6#
    • 1...Rd4
      • 2.Sxg6#
    • 1...Re4
      • 2.Sxg6#
    • 1...Rf4
      • 2.Sc6#
      • 2.Sxg6#
    • 1...Rh4
      • 2.Sxg6#
    • 1...Bf4
      • 2.Sc4#
      • 2.Sxg4#
      • 2.Sc6#
    • 1...g5
      • 2.Sg6#
  • Tries
    • 1.Rd5+?
      • 1...Kf4
        • 2.Sg2#
      • 1...exd5!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Sc6#
      • 1...Kxd4
        • 2.Sc6#
      • 1...Rxd4
        • 2.Sxg6#
      • 1...Re4
        • 2.Rxe4#
      • 1...f5
        • 2.Bg7#
      • 1...c6
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD::S(F),XP(g)
    • R(c);N_GUARD,P_PINS(C)::S(F),XP(g)
    • P(g);S_CUTR(c)::S(F)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(d);S_FLIGHT::S(C)
      • Refutation
        • P(e);XR(A)
  • Actual
    • R(A);
    • Threat
      • S(F)
    • Vars
      • K(d);S_FLIGHT,XR(A)::S(F)
      • R(c);N_GUARD,SBLOCK,XR(A)::S(F),XP(g)
      • R(c);N_GUARD,P_PINS(C)::R1(A),XR(c)
      • P(f);OGATEB::B(G)
      • P(h);::S(F),XP(h)
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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).