MESON Chess Problem Database

Problem Display
PID: 196012 (1nR5/p1b3pp/2k5/1R2p2Q/P1N5/6NB/3rrPPK/8 w - - 0 1)

Henrych, Miroslav

1st Comm., Okruzni soutez, 1983-1984

1nR5/p1b3pp/2k5/1R2p2Q/P1N5/6NB/3rrPPK/8

#2

10 + 9

3485 Sachova skladba 1986

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Sa5#
    • 1...e4
      • 2.Qc5#
  • Tries
    • 1.Se4?
      • threat
        • 2.Sa5#
        • 2.Sxe5#
      • 1...Rd5
        • 2.Sa5#
      • 1...Sd7
        • 2.Sa5#
      • 1...a5
        • 2.Sxa5#
        • 2.Sxe5#
      • 1...Rxe4!
    • 1.Qg6+?
      • 1...Rd6
        • 2.Sa5#
        • 2.Qxd6#
      • 1...hxg6!
    • 1.Qxe5?
      • threat
        • 2.Sa5#
        • 2.Rxc7#
        • 2.Qxc7#
        • 2.Qc5#
      • 1...Rd5
        • 2.Sa5#
        • 2.Rxc7#
        • 2.Qxc7#
        • 2.Qxd5#
      • 1...Rd6
        • 2.Sa5#
        • 2.Qxd6#
        • 2.Qc5#
      • 1...Rd7
        • 2.Sa5#
        • 2.Qc5#
      • 1...Sa6
        • 2.Sa5#
      • 1...Sd7
        • 2.Sa5#
        • 2.Rxc7#
        • 2.Qxc7#
      • 1...a5
        • 2.Sxa5#
        • 2.Rb6#
        • 2.Rxc7#
        • 2.Qxc7#
        • 2.Qc5#
      • 1...Rxe5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Se7#
      • 1...e4+
        • 2.Se5#
      • 1...Kd7
        • 2.Qe8#
      • 1...Rd7
        • 2.Sa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(a);SBLOCK::S(G)
    • P(c);OGATE,P_PINS(D)::QAR1(I)
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::S(G)
        • S(i);::S(G)
      • Refutation
        • R(b);XS(D)
    • Try
      • Q(I);CHECK
      • Refutation
        • P(h);XQ(I)
    • Try
      • Q(I);XP(c)
      • Threat
        • DUALS(4)
      • Vars
        • S(i);::S(G)
      • Refutation
        • R(b);XQ(I)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • P(c);CHECK,S_CUTR(b)::S(G)
      • K(d);N_SPINB(f),S_FLIGHT::QAB1(I)
      • R(a);SBLOCK::S(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).