MESON Chess Problem Database

Problem Display
PID: 189636 (8/3p1N2/3P4/3k2P1/KP5N/4n3/2P1Q3/2R5 w - - 0 1)

Blatt, Ferenc

Pesti Naplo, 1911

8/3p1N2/3P4/3k2P1/KP5N/4n3/2P1Q3/2R5

#2

9 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd3#
    • 1...Kc6
      • 2.Qb5#
  • Tries
    • 1.Qd3+?
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6!
    • 1.Qb5+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qe5#
      • 1...Ke6!
    • 1.Qxe3?
      • 1...Kc4
        • 2.Qc5#
        • 2.Qd3#
      • 1...Kc6!
  • Keys
    • 1.Re1!
      • 1...Kd4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qc4#
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Qc4#
      • 1...Sxc2
        • 2.Qe4#
      • 1...Sd1
        • 2.Qe4#
      • 1...Sf1
        • 2.Qe4#
      • 1...Sg2
        • 2.Qe4#
      • 1...Sc4
        • 2.Qe4#
      • 1...Sg4
        • 2.Qe4#
      • 1...Sf5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR1(C)
    • K(b);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
        • K(b);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);XS(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(b);P-FLIGHT::QAR1(C)
      • K(b);P_SPINS(a),S_FLIGHT::QAR2(C)
      • K(b);S_FLIGHT::QAB1(C)
      • K(b);P_SPINS(a),S_FLIGHT::QAB(C)
      • S(a);OGATE,XP(B)::QAB1(C)
      • S(a);OGATE::QAB1(C)
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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).