MESON Chess Problem Database

Problem Display
PID: 109081 (B1K5/8/RN1k1P2/2n2PpN/2Pr2P1/3Q4/b2b2p1/B2R2q1 w - - 0 1)

Novejarque Iranzo, Francisco

Match: Netherlands - Spain, 1935

B1K5/8/RN1k1P2/2n2PpN/2Pr2P1/3Q4/b2b2p1/B2R2q1

#2

12 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Qxd4#
    • 1...Qxd1
      • 2.Qxd4#
    • 1...Qe1
      • 2.Qxd4#
    • 1...Qf1
      • 2.Qxd4#
    • 1...Qh1
      • 2.Qxd4#
    • 1...Rd5
      • 2.Qxd5#
    • 1...Bxc4
      • 2.Sxc4#
    • 1...Bc3
      • 2.Qg3#
    • 1...Bb4
      • 2.Qg3#
    • 1...Ba5
      • 2.Qg3#
    • 1...Sb3
      • 2.Sd7#
    • 1...Sxd3
      • 2.Sd7#
    • 1...Se4
      • 2.Sd7#
    • 1...Se6
      • 2.Sd7#
    • 1...Sb7
      • 2.Sd7#
    • 1...Sd7
      • 2.Sxd7#
  • Keys
    • 1.Qa3!
      • threat
        • 2.Sd7#
      • 1...Ke5
        • 2.Qxc5#
      • 1...Bxc4
        • 2.Sxc4#
      • 1...Bb4
        • 2.Qg3#
      • 1...Ba5
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 13
  • Sets
    • Q(a);N_GUARD::QAR2(C),XR(e)
    • Q(a);N_GUARD,XR(B)::QAR2(C),XR(e)
    • R(e);OGATE::QAR1(C),XR(e)
    • B(b);XP(D)::R(H)+S(I),DCHECK,XB(b)
    • B(c);N_GUARD::QAB(C)
    • S(f);N_GUARD::R(H)+S(I)
    • S(f);N_GUARD,N_SPINR(e),XQ(C)::R(H)+S(I)
    • S(f);N_GUARD::R(H)+S(I),XS(f)
  • Actual
    • Q(C);N_PINR(e),P_PINS(f)
    • Threat
      • R(H)+S(I)
    • Vars
      • K(h);N_SPINS(f),P_SPINR(e),S_FLIGHT::QAR2(C),XS(f)
      • B(b);XP(D)::R(H)+S(I),DCHECK,XB(b)
      • B(c);N_GUARD,N_SPINS(f),P_SPINR(e)::QAB(C)
      • B(c);N_GUARD,P_SPINR(e)::QAB(C)
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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).