MESON Chess Problem Database

Problem Display
PID: 136925 (2q5/3B4/4Qr2/rR2pp1p/1bb1k1nR/2pnN3/2P1N1P1/2B2K2 w - - 0 1)

Deutekomm, AJ

2/3 HM., Limburgs Dagblad, 1938/II

2q5/3B4/4Qr2/rR2pp1p/1bb1k1nR/2pnN3/2P1N1P1/2B2K2

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qa6
      • 2.Qxc4#
    • 1...Qb7
      • 2.Qxc4#
    • 1...Qa8
      • 2.Qxc4#
    • 1...Qb8
      • 2.Qxc4#
    • 1...Qd8
      • 2.Qxc4#
    • 1...Qe8
      • 2.Qxc4#
    • 1...Qf8
      • 2.Qxc4#
    • 1...Qh8
      • 2.Qxc4#
    • 1...Rg6
      • 2.Qxf5#
    • 1...Rh6
      • 2.Qxf5#
    • 1...Bxb5
      • 2.Qd5#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Sxc1
      • 2.Qxe5#
    • 1...Se1
      • 2.Qxe5#
    • 1...Sb2
      • 2.Qxe5#
    • 1...Sf2
      • 2.Qxe5#
    • 1...Sc5
      • 2.Qxc4#
  • Tries
    • 1.Bc6+?
      • 1...Bd5
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Qxc6!
    • 1.cxd3+?
      • 1...Bxd3
        • 2.Qd5#
        • 2.Qxe5#
      • 1...Kxd3!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Sg3#
      • 1...Rxf5+
        • 2.Qxf5#
      • 1...Sxc1
        • 2.Qxe5#
      • 1...Se1
        • 2.Qxe5#
      • 1...Sb2
        • 2.Qxe5#
      • 1...Sf2
        • 2.Sg3#
        • 2.Qxe5#
      • 1...Sf4
        • 2.Sg3#
      • 1...Sc5
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 13
  • Sets
    • Q(l);N_GUARD::QAR2(I),XB(d)
    • R(k);N_GUARD::QAB1(I),XP(i)
    • B(d);N_GUARD,XR(H)::QAB1(I)
    • B(d);N_GUARD::QAB1(I),XB(d)
    • S(b);N_GUARD,P_PINS(D),XB(A)::QAR1(I),XP(h)
    • S(b);N_GUARD,P_PINS(D)::QAR1(I),XP(h)
    • S(b);P_PINS(D),S_CUTQ(l)::QAR2(I),XB(d)
  • Tries
    • Try
      • B(J);CHECK
      • Refutation
        • Q(l);XB(J)
    • Try
      • P(C);CHECK,XS(b)
      • Refutation
        • K(e);N_SPINP(h),N_SPINS(f),S_FLIGHT,XP(C)
  • Actual
    • S(F);P_SPINS(F),XP(i)
    • Threat
      • S(D)
    • Vars
      • R(k);CHECK,OGATE,XS(F)::QAB1(I),XR(k)
      • S(b);N_GUARD,N_PINS(F),P_PINS(D),XB(A)::QAR1(I),XP(h)
      • S(b);N_GUARD,N_PINS(F),P_PINS(D)::QAR1(I),XP(h)
      • S(b);N_PINS(F),N_SPINS(f),P_PINS(D)::S(F)
      • S(b);N_PINS(F),P_PINS(D),S_CUTQ(l)::QAR2(I),XB(d)
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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).