MESON Chess Problem Database

Problem Display
PID: 103661 (2K5/1Q2N3/2p2R2/1pq1B2R/1N1bkp2/4Pr2/3P1p2/8 w - - 0 1)

Musante, Horacio Luis

Puig Ambros MT, 1962

2K5/1Q2N3/2p2R2/1pq1B2R/1N1bkp2/4Pr2/3P1p2/8

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qa7
      • 2.Qxc6#
    • 1...Qxe7
      • 2.Qxc6#
    • 1...Rxe3
      • 2.Rxf4#
    • 1...Rg3
      • 2.Rxf4#
    • 1...Rh3
      • 2.Rxf4#
    • 1...Bxe3
      • 2.d3#
    • 1...fxe3
      • 2.d3#
  • Tries
    • 1.Qxc6+?
      • 1...Qd5
        • 2.Qxd5#
        • 2.Qc2#
      • 1...Qxc6+!
    • 1.Qd7?
      • threat
        • 2.Qf5#
      • 1...Rxe3
        • 2.Rxf4#
      • 1...fxe3
        • 2.d3#
      • 1...Rg3
        • 2.Rxf4#
      • 1...Rh3
        • 2.Rxf4#
      • 1...Qxe5!
  • Keys
    • 1.Sexc6!
      • threat
        • 2.Qh7#
      • 1...Qf8+
        • 2.Sd8#
      • 1...Qxc6+
        • 2.Qxc6#
      • 1...Qxb4
        • 2.Sxb4#
      • 1...Qxe5
        • 2.Sxe5#
      • 1...Rxe3
        • 2.Rxf4#
      • 1...fxe3
        • 2.d3#
      • 1...Rg3
        • 2.Rxf4#
      • 1...Rh3
        • 2.Rxf4#
      • 1...Qa7
        • 2.Sxa7#
      • 1...Qe7
        • 2.Sxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(g);N_GUARD::QAB(G),XP(h)
    • Q(g);N_GUARD,XS(H)::QAB(G),XP(h)
    • R(b);N_GUARD,XP(B)::R1(F),XP(e)
    • R(b);N_GUARD::R1(F),XP(e)
    • B(c);SBLOCK,XP(B)::P(A)
    • P(e);SBLOCK,XP(B)::P(A)
  • Tries
    • Try
      • Q(G);CHECK,P_SPINQ(G),XP(h)
      • Refutation
        • Q(g);CHECK,XQ(G)
    • Try
      • Q(G);N_PINP(h)
      • Threat
        • QAB1(G)
      • Vars
        • R(b);N_GUARD,XP(B)::R1(F),XP(e)
        • P(e);SBLOCK,XP(B)::P(A)
        • R(b);N_GUARD::R1(F),XP(e)
      • Refutation
        • Q(g);XB(D)
  • Actual
    • S(H);P_SPINS(H),XP(h)
    • Threat
      • QAB(G)
    • Vars
      • Q(g);CHECK,N_PINS(H)::QAB(G)+S(H)
      • Q(g);CHECK,OGATE,P_SPINQ(g),XS(H)::QAB(G),XQ(g)
      • Q(g);N_PINS(H),XS(C)::QAB(G)+S(H),XQ(g)
      • Q(g);N_PINS(H),XB(D)::QAB(G)+S(H),XQ(g)
      • R(b);N_GUARD,XP(B)::R1(F),XP(e)
      • P(e);SBLOCK,XP(B)::P(A)
      • R(b);N_GUARD::R1(F),XP(e)
      • Q(g);N_PINS(H)::QAB(G)+S(H),XQ(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).