MESON Chess Problem Database

Problem Display
PID: 194067 (2n1Q3/b2P3n/Rq3k1P/2R2N1p/b4P1r/3r1P1B/3P2p1/6K1 w - - 0 1)

Novejarque Iranzo, Francisco

2nd Prize, El Ajedrez Espanol, 1917

2n1Q3/b2P3n/Rq3k1P/2R2N1p/b4P1r/3r1P1B/3P2p1/6K1

#2

11 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Rxe6#
      • 2.Qxe6#
  • Tries
    • 1.Qe5+?
      • 1...Kg6
        • 2.Qg7#
      • 1...Kf7!
    • 1.Qe7+?
      • 1...Kg6
        • 2.Qg7#
      • 1...Sxe7!
    • 1.Qf8+?
      • 1...Ke6
        • 2.Sd4#
        • 2.Sxh4#
        • 2.Sg7#
      • 1...Kg6
        • 2.Sxh4#
        • 2.Qg7#
      • 1...Sxf8!
    • 1.d8Q+?
      • 1...Se7
        • 2.Qdxe7#
      • 1...Rxd8!
  • Keys
    • 1.Sg3!
      • threat
        • 2.Se4#
      • 1...Rxf4
        • 2.Sxh5#
      • 1...Re3
        • 2.Rf5#
      • 1...Rd4
        • 2.Rf5#
      • 1...Bc6
        • 2.Qe6#
      • 1...Sg5
        • 2.fxg5#
      • 1...Sd6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(K);CHECK
      • Vars
        • K(g);OGATE,P-FLIGHT::QAR1(K)
      • Refutation
        • K(g);N_SPINQ(f),P-FLIGHT
    • Try
      • Q(K);CHECK
      • Vars
        • K(g);P-FLIGHT::QAR1(K)
      • Refutation
        • S(j);XQ(K)
    • Try
      • Q(K);CHECK
      • Refutation
        • S(i);XQ(K)
    • Try
      • P(J);CHECK
      • Vars
        • S(j);N_GUARD,P_SPINS(j)::QAB1(J),XS(j)
      • Refutation
        • R(b);XQ(J)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • R(d);N_GUARD,XP(E)::S(G),XP(e)
      • R(b);N_PINR(F)::R1(F)
      • B(c);N_SPINQ(f),S_CUTQ(f)::QAR1(K)
      • S(i);OGATE::P(E),XS(i)
      • S(j);N_SPINQ(f),S_CUTQ(f)::QAR1(K)
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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).