MESON Chess Problem Database

Problem Display
PID: 140242 (Rn2K3/1pkB4/1p2Rp2/1P2p3/1PPN4/8/1r5B/2bQr3 w - - 0 1)

Herman, Mauricio

1st Prize, Schweizerische Schachzeitung, 1958

Rn2K3/1pkB4/1p2Rp2/1P2p3/1PPN4/8/1r5B/2bQr3

#2

10 + 9

6230 Ajedrez Artistico 1968

SOLUTION

  • SOUND
  • Sets
    • 1...Sa6
      • 2.Rc8#
    • 1...Sc6
      • 2.Rc8#
  • Tries
    • 1.Rc6+?
      • 1...Sxc6
        • 2.Se6#
      • 1...bxc6!
    • 1.c5?
      • threat
        • 2.cxb6#
      • 1...bxc5
        • 2.b6#
      • 1...Sc6
        • 2.Rc8#
      • 1...Sxd7!
  • Keys
    • 1.Rxe5!
      • threat
        • 2.Se6#
      • 1...Kd6
        • 2.Re6#
      • 1...Rxd1
        • 2.Rc5#
      • 1...Rd2
        • 2.Re2#
      • 1...Bd2
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • S(i);OGATE::R1(I)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • S(i);XR(G)::S(E)
      • Refutation
        • P(g);XR(G)
    • Try
      • P(D);
      • Threat
        • P(D),XP(e)
      • Vars
        • P(e);OGATE,XP(D)::P(F)
        • S(i);OGATE::R1(I)
      • Refutation
        • S(i);XB(H)
  • Actual
    • R(G);P_SPINR(G),XP(d)
    • Threat
      • S(E)
    • Vars
      • K(h);S_FLIGHT::B(B)+R(G),DCHECK
      • R(b);N_PINR(G),XQ(A)::B(B)+R(G),DCHECK
      • R(c);S_CUTB(a)::B(B)+R(G)
      • B(a);S_CUTR(c)::B(B)+R(G)
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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).