MESON Chess Problem Database

Problem Display
PID: 198869 (4RK2/1P1Q3P/B4p1r/4n3/2P1kp2/1r1p3P/1p3p2/2Nn1N2 w - - 0 1)

Telkes, Imre

Bekes, 1921

4RK2/1P1Q3P/B4p1r/4n3/2P1kp2/1r1p3P/1p3p2/2Nn1N2

#2

10 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qd5#
    • 1...Rb4
      • 2.Qxd3#
    • 1...Rb5
      • 2.Qxd3#
    • 1...Rb6
      • 2.Qxd3#
    • 1...Rxb7
      • 2.Bxb7#
      • 2.Qxd3#
    • 1...Sc3
      • 2.Qxd3#
    • 1...Se3
      • 2.Sd2#
    • 1...f3
      • 2.Qg4#
    • 1...f5
      • 2.Qd5#
  • Tries
    • 1.Rxe5+?
      • 1...Kf3
        • 2.Qg4#
        • 2.Qc6#
        • 2.Qd5#
      • 1...Kxe5
        • 2.Qd5#
      • 1...fxe5!
  • Keys
    • 1.Bb5!
      • threat
        • 2.Bc6#
      • 1...Kf3
        • 2.Qd5#
      • 1...Rxb5
        • 2.Qxd3#
      • 1...Sc3
        • 2.Qxd3#
      • 1...Se3
        • 2.Sd2#
      • 1...f3
        • 2.Qg4#
      • 1...f5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • K(f);N_SPINS(h),S_FLIGHT::QAB(G)
    • R(d);N_GUARD::QAB1(G),XP(e)
    • S(a);S_CUTR(d)::QAB1(G),XP(e)
    • S(a);SBLOCK::S(B)
    • P(g);OGATEB::QAR2(G)
    • P(i);SBLOCK::QAB1(G)
  • Tries
    • Try
      • R(I);CHECK,XS(h)
      • Vars
        • K(f);P-FLIGHT,XR(I)::QAR1(G)
      • Refutation
        • P(i);XR(I)
  • Actual
    • B(E);
    • Threat
      • B(E)
    • Vars
      • K(f);N_SPINS(h),S_FLIGHT::QAB(G)
      • R(d);N_GUARD,XB(E)::QAB1(G),XP(e)
      • S(a);S_CUTR(d)::QAB1(G),XP(e)
      • S(a);SBLOCK::S(B)
      • P(g);OGATEB::QAR2(G)
      • P(i);SBLOCK::QAB1(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).