MESON Chess Problem Database

Problem Display
PID: 156740 (1n2Q3/2Bq2Nr/2p1p2b/8/rR1PkN2/pR4np/K1P5/1B6 w - - 0 1)

Dyachuk, Vasyl Vasilovich

The Problemist, 2014

1n2Q3/2Bq2Nr/2p1p2b/8/rR1PkN2/pR4np/K1P5/1B6

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Qxe6#
    • 1...Qd8
      • 2.Qxe6#
    • 1...Ra5
      • 2.d5#
    • 1...Ra6
      • 2.d5#
    • 1...Ra7
      • 2.d5#
    • 1...Ra8
      • 2.d5#
    • 1...Sf1
      • 2.Qg6#
    • 1...Sh1
      • 2.Qg6#
    • 1...Se2
      • 2.Qg6#
    • 1...Sh5
      • 2.Qg6#
    • 1...e5
      • 2.Qxe5#
  • Tries
    • 1.Sfxe6?
      • threat
        • 2.c4#
      • 1...Kd5
        • 2.c4#
      • 1...Qxe6
        • 2.Qxe6#
      • 1...Qxd4
        • 2.Sf4#
      • 1...Be3!
  • Keys
    • 1.Sgxe6!
      • threat
        • 2.c4#
      • 1...Kf5
        • 2.Qg6#
      • 1...Qxe6
        • 2.Qxe6#
      • 1...Qxd4
        • 2.Sg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • Q(i);N_GUARD,P_SPINQ(i),XP(F)::QAR2(J),XP(g)
    • Q(i);N_GUARD::QAR2(J),XP(g)
    • R(d);N_GUARD::R(E)+P(F)
    • S(b);N_GUARD::QAB(J)
    • P(g);OGATE::QAR1(J),XP(g)
  • Tries
    • Try
      • S(G);XP(g)
      • Threat
        • B(A)+P(C)
      • Vars
        • K(e);S_FLIGHT::P(C)
        • Q(i);OGATE,P_PINR(D),P_SPINQ(i),XS(G)::QAR2(J),XQ(i)
        • Q(i);N_GUARD,P_SPINQ(i),XP(F)::QAR(J)+S(G)
      • Refutation
        • B(h);
  • Actual
    • S(I);XP(g)
    • Threat
      • B(A)+P(C)
    • Vars
      • K(e);S_FLIGHT::QAB1(J)
      • Q(i);OGATE,P_PINR(D),P_SPINQ(i),XS(I)::QAR2(J),XQ(i)
      • Q(i);N_GUARD,P_SPINQ(i),XP(F)::QAR(J)+S(I)
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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).