MESON Chess Problem Database

Problem Display
PID: 141263 (2n4K/1b6/7p/2Q2p1r/4k3/2R1NpP1/2P5/b7 w - - 0 1)

Leopold, Dr Rudolf L

Magyar Sakkvilag, 1913

2n4K/1b6/7p/2Q2p1r/4k3/2R1NpP1/2P5/b7

#2

6 + 8

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qxd5#
    • 1...Ba6
      • 2.Qd5#
  • Tries
    • 1.Sd1?
      • threat
        • 2.Sf2#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Bd5
        • 2.Qe3#
      • 1...f2
        • 2.Sxf2#
      • 1...Rh2!
    • 1.Sc4?
      • threat
        • 2.Sd2#
        • 2.Qe5#
      • 1...Rh2
        • 2.Qe5#
      • 1...Bd5
        • 2.Qe3#
      • 1...f4
        • 2.Sd2#
      • 1...Bxc3+!
    • 1.Qe7+?
      • 1...Kd4
        • 2.Rd3#
        • 2.Rc4#
      • 1...Sxe7!
    • 1.Qxf5+?
      • 1...Kd4
        • 2.Rd3#
      • 1...Rxf5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sf6#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Ke5
        • 2.Re3#
      • 1...Bxd5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(g);N_GUARD::QAB1(E),XB(g)
    • B(g);N_GUARD::QAB1(E)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • B(a);CHECK,XR(B)::S(C),XB(a)
        • B(g);SBLOCK::QAR1(E)
        • P(b);::S(C),XP(b)
      • Refutation
        • R(e);
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(e);::QAR1(E)
        • B(g);SBLOCK::QAR1(E)
        • P(d);::S(C)
      • Refutation
        • B(a);CHECK,XR(B)
    • Try
      • Q(E);CHECK
      • Refutation
        • S(h);XQ(E)
    • Try
      • Q(E);CHECK,XP(d)
      • Vars
        • K(c);N_PINR(B),P-FLIGHT::R1(B)
      • Refutation
        • R(e);XQ(E)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • B(a);CHECK,XR(B)::S(C),XB(a)
      • K(c);N_PINR(B),P-FLIGHT::R(B)
      • B(g);SBLOCK,XS(C)::QAR1(E)
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).