MESON Chess Problem Database

Problem Display
PID: 231386 (8/1Np5/2Pp3N/3Pp3/3k2p1/1Q3pB1/5K2/8 w - - 0 1)

Schwarz, Bela

Nepszava, 1927

8/1Np5/2Pp3N/3Pp3/3k2p1/1Q3pB1/5K2/8

#2

7 + 6

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qc4#
    • 1...e4
      • 2.Sf5#
  • Tries
    • 1.Sa5?
      • threat
        • 2.Qc4#
      • 1...Ke4
        • 2.Qc4#
      • 1...Kc5!
    • 1.Bh2?
      • 1...Ke4
        • 2.Qc4#
      • 1...e4
        • 2.Sf5#
      • 1...g3+!
    • 1.Bh4?
      • 1...Ke4
        • 2.Qc4#
      • 1...e4
        • 2.Bf6#
      • 1...g3+!
  • Keys
    • 1.Sd8!
      • 1...Ke4
        • 2.Qc4#
      • 1...Kc5
        • 2.Se6#
      • 1...e4
        • 2.Se6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(B)
    • P(d);SBLOCK::S(F)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAR1(B)
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
        • P(d);SBLOCK::S(F)
      • Refutation
        • P(c);CHECK
    • Try
      • B(C);
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
        • P(d);OGATEB,SBLOCK::B(C)
      • Refutation
        • P(c);CHECK
  • Actual
    • S(G);
    • Vars
      • K(b);P-FLIGHT::QAR2(B)
      • K(b);S_FLIGHT::S(G)
      • P(d);SBLOCK::S(G)
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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).