MESON Chess Problem Database

Problem Display
PID: 229283 (1b1N1Rn1/p7/K1Q1Rqpn/p2r1kBp/2N2p1P/3P4/6BP/8 w - - 0 1)

Kiszela, Geza

Nepszava, 1926

1b1N1Rn1/p7/K1Q1Rqpn/p2r1kBp/2N2p1P/3P4/6BP/8

#2

11 + 11

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sg4
      • 2.Be4#
    • 1...Sf7
      • 2.Bh3#
    • 1...f3
      • 2.Se3#
  • Tries
    • 1.Rexf6+?
      • 1...Sxf6
        • 2.Qe6#
      • 1...Kg4!
  • Keys
    • 1.Re4!
      • threat
        • 2.Qe6#
      • 1...Kg4
        • 2.Se3#
      • 1...Re5
        • 2.Rxf4#
      • 1...Rd6
        • 2.Rxf4#
      • 1...Bd6
        • 2.Qd7#
        • 2.Qc8#
      • 1...Sf7
        • 2.Bh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(h);SBLOCK::B(A)
    • S(h);N_GUARD,N_SPINQ(f)::B(A)
    • P(a);N_GUARD::S(D)
  • Tries
    • Try
      • R(I);CHECK,XQ(f)
      • Vars
        • S(k);P_SPINS(k),XR(I)::QAB1(H)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(I);P_SPINQ(H)
    • Threat
      • QAB1(H)
    • Vars
      • K(d);N_SPINQ(f),P_SPINP(a),S_FLIGHT::S(D)
      • R(c);S_CUTB(j)::R1(I),XP(a)
      • S(h);N_GUARD,N_SPINQ(f)::B(A)
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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).