MESON Chess Problem Database

Problem Display
PID: 240126 (2rN4/Q2p2P1/3p1PK1/r1n1k3/1B2n1R1/1p1PN2R/8/1b2b2q w - - 0 1)

Zilahi, Zoltan

Skakbladet, 1939

2rN4/Q2p2P1/3p1PK1/r1n1k3/1B2n1R1/1p1PN2R/8/1b2b2q

#2

10 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Bc3#
    • 1...Sa4
      • 2.d4#
    • 1...Sa6
      • 2.d4#
    • 1...Se6
      • 2.Sf7#
    • 1...Sb7
      • 2.d4#
  • Tries
    • 1.Rg5+?
      • 1...Kd4
        • 2.Rd5#
      • 1...Kf4
        • 2.Sd5#
        • 2.Rf5#
      • 1...Sxg5!
  • Keys
    • 1.g8Q!
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qd5#
      • 1...Sxf6
        • 2.Sc4#
      • 1...Sxd3
        • 2.Qe8#
      • 1...d5
        • 2.Qxd5#
      • 1...Sd2
        • 2.Bc3#
      • 1...Sf2
        • 2.Sc4#
      • 1...Sc3
        • 2.Sc4#
      • 1...Sg3
        • 2.Sc4#
      • 1...Sg5
        • 2.Sc4#
      • 1...Sa4
        • 2.Qe8#
        • 2.d4#
      • 1...Sa6
        • 2.Qe8#
        • 2.d4#
      • 1...Se6
        • 2.Sf7#
      • 1...Sb7
        • 2.Qe8#
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 3
  • Sets
    • S(e);N_GUARD,P_PINP(A),S_CUTB(b)::B(D)
    • S(g);::P(A)
    • S(g);SBLOCK::S(J)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(h);OGATE,P_SPINS(g),S_FLIGHT::R1(E)
      • Refutation
        • S(e);P_PINP(A),XR(E)
  • Actual
    • P(I);
    • Threat
      • QAR1(I)
    • Vars
      • K(h);P_SPINS(e),S_FLIGHT::QAR1(I)
      • S(e);P_PINP(A),XP(F)::S(B)
      • S(g);N_GUARD,XP(A)::QAR(I)
      • P(i);::QAR1(I),XP(i)
      • S(e);N_GUARD,P_PINP(A),S_CUTB(b)::B(D)
      • S(e);P_PINP(A)::S(B)
      • S(g);SBLOCK::S(J)
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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).