MESON Chess Problem Database

Problem Display
PID: 143265 (2b3B1/b3K3/4nB2/2p4R/PpkP2N1/1p5R/r3r3/4NQ2 w - - 0 1)

Gugel, Lev Nikolaevich

Magyar Sakkvilag, 1930

2b3B1/b3K3/4nB2/2p4R/PpkP2N1/1p5R/r3r3/4NQ2

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxe2#
    • 1...Ra3
      • 2.Qxe2#
    • 1...Rxa4
      • 2.Qxe2#
    • 1...Bb8
      • 2.Rxc5#
    • 1...Ba6
      • 2.Bxe6#
    • 1...b2
      • 2.Qxe2#
  • Tries
    • 1.dxc5?
      • threat
        • 2.Se3#
      • 1...Rxa4
        • 2.Qxe2#
      • 1...b2
        • 2.Qxe2#
      • 1...Bxc5+!
  • Keys
    • 1.d5!
      • threat
        • 2.Se3#
      • 1...Sd4+
        • 2.Se5#
      • 1...Rxa4
        • 2.Qxe2#
      • 1...b2
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD::QAB(B),XR(b)
    • R(a);N_GUARD,XP(D)::QAB(B),XR(b)
    • B(h);N_GUARD::R1(G),XP(f)
    • B(i);N_GUARD::B(J),XS(g)
    • P(c);S_CUTR(a)::QAB(B),XR(b)
  • Tries
    • Try
      • P(E);XP(f)
      • Threat
        • S(F)
      • Vars
        • R(a);N_GUARD,XP(D)::QAB(B),XR(b)
        • P(c);S_CUTR(a)::QAB(B),XR(b)
      • Refutation
        • B(h);CHECK,XP(E)
  • Actual
    • P(E);N_PINS(g)
    • Threat
      • S(F)
    • Vars
      • S(g);CHECK,SBLOCK::S(F)
      • R(a);N_GUARD,XP(D)::QAB(B),XR(b)
      • P(c);S_CUTR(a)::QAB(B),XR(b)
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).