MESON Chess Problem Database

Problem Display
PID: 201619 (3NN3/4R3/2P1p1p1/Q1K1k1p1/3n2n1/1pb1qPP1/1Bb5/4R3 w - - 0 1)

Elekes, Dezso

Good Companions, 1922

3NN3/4R3/2P1p1p1/Q1K1k1p1/3n2n1/1pb1qPP1/1Bb5/4R3

#2

10 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Sf7#
      • 2.Qc7#
    • 1...Bb4+
      • 2.Kxb4#
    • 1...Sf5+
      • 2.Kc4#
  • Tries
    • 1.Kc4+?
      • 1...Sb5
        • 2.Qxb5#
      • 1...Bxa5!
    • 1.Rxe6+?
      • 1...Kf5
        • 2.Sd6#
        • 2.Sg7#
      • 1...Sxe6+!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Sxd4#
      • 1...Bb4+
        • 2.Kxb4#
      • 1...Se2+
        • 2.Sd4#
      • 1...Sxf3+
        • 2.Sd4#
      • 1...Sb5+
        • 2.Sd4#
      • 1...Sf5+
        • 2.Kc4#
      • 1...Sxc6+
        • 2.Kxc6#
      • 1...Sxe6+
        • 2.Kc4#
      • 1...Kf5
        • 2.S6g7#
      • 1...Bf5
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(c);CHECK,P_SPINS(e)::QAR(E)+K(F),XB(c)
    • S(e);CHECK,N_GUARD,P_SPINB(c),SBLOCK::QAR(E)+K(F)
  • Tries
    • Try
      • K(F);CHECK,P-FLIGHT
      • Vars
        • S(e);N_GUARD,P_SPINB(c),P_SPINS(e)::QAR(E),XS(e)
      • Refutation
        • B(c);P_SPINS(e),XQ(E)
    • Try
      • R(H);CHECK,XP(i)
      • Refutation
        • S(e);CHECK,P_SPINB(c),XR(H)
  • Actual
    • S(I);XP(i)
    • Threat
      • R(H)+S(I),XS(e)
    • Vars
      • B(c);CHECK,P_SPINS(e)::QAR(E)+K(F),XB(c)
      • S(e);CHECK,N_SPINQ(d),P_SPINB(c)::R(H)+S(I)
      • S(e);CHECK,P_SPINB(c),XP(C)::R(H)+S(I)
      • S(e);CHECK,P_SPINB(c)::R(H)+S(I)
      • S(e);CHECK,N_GUARD,P_SPINB(c),SBLOCK::QAR(E)+K(F)
      • S(e);CHECK,P_SPINB(c),XP(G)::QAR(E)+K(F),XS(e)
      • S(e);CHECK,N_GUARD,P_SPINB(c),P_SPINS(e),XS(I)::QAR(E)+K(F)
      • K(g);N_SPINQ(d),P-FLIGHT::S(I)
      • B(a);SBLOCK::QAB(E)
HTML5 logo

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).