MESON Chess Problem Database

Problem Display
PID: 229217 (b7/2Kp1p2/6Rn/R1ppk2N/r5B1/b1N5/q1Q5/6B1 w - - 0 1)

Bajtay, Jozsef

Nepszava, 1926

b7/2Kp1p2/6Rn/R1ppk2N/r5B1/b1N5/q1Q5/6B1

#2

8 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sg8
      • 2.Qf5#
    • 1...c4
      • 2.Qe4#
    • 1...d4
      • 2.Bh2#
  • Tries
    • 1.Rg5+?
      • 1...Sf5
        • 2.Qxf5#
      • 1...f5!
    • 1.Qh2+?
      • 1...Rf4
        • 2.Qxf4#
      • 1...Qxh2!
  • Keys
    • 1.Rg8!
      • threat
        • 2.Re8#
      • 1...Sxg8
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...c4
        • 2.Qe4#
      • 1...d4
        • 2.Bh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::QAR1(B),XS(g)
    • S(g);N_GUARD::QAR1(B)
    • P(d);P_SPINP(e),S_CUTR(c)::QAR1(B)
    • P(e);P_SPINP(d),SBLOCK,S_CUTR(c)::B(A)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • S(g);N_GUARD,P_SPINS(g)::QAR1(B),XS(g)
      • Refutation
        • P(i);P_SPINP(i)
    • Try
      • Q(B);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAB1(B),XR(c)
      • Refutation
        • Q(a);XQ(B)
  • Actual
    • R(G);
    • Threat
      • R(G)
    • Vars
      • S(g);N_GUARD,XR(G)::QAR1(B)
      • S(g);N_GUARD::QAR1(B),XS(g)
      • P(d);P_SPINP(e),S_CUTR(c)::QAR1(B)
      • P(e);P_SPINP(d),SBLOCK,S_CUTR(c)::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).