MESON Chess Problem Database

Problem Display
PID: 110603 (2K3Q1/1P2pn1b/4kqR1/3r1p2/1B6/1Bp1bN2/1r2R3/3n4 w - - 0 1)

Molnar, Arpad

Fleck-80 JT, 1987

2K3Q1/1P2pn1b/4kqR1/3r1p2/1B6/1Bp1bN2/1r2R3/3n4

#2

8 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rxf6+?
      • 1...exf6
        • 2.Qe8#
      • 1...Kxf6!
    • 1.Qe8?
      • threat
        • 2.Qd7#
        • 2.Qxe7#
      • 1...Qxg6
        • 2.Qxe7#
      • 1...Rxb3
        • 2.Qxe7#
      • 1...Bxg6
        • 2.Qd7#
      • 1...f4
        • 2.Qd7#
      • 1...Se5
        • 2.Qxe7#
      • 1...Sg5
        • 2.Qxe7#
      • 1...Sh6
        • 2.Qxe7#
      • 1...Sd8
        • 2.Qxe7#
      • 1...Sh8
        • 2.Qxe7#
      • 1...Sd6+!
  • Keys
    • 1.b8Q!
      • threat
        • 2.Sd4#
        • 2.Sg5#
        • 2.Qe5#
        • 2.Qb6#
      • 1...Qxg6
        • 2.Qe5#
        • 2.Qb6#
      • 1...Rxe2
        • 2.Qe5#
      • 1...Rxb3
        • 2.Sg5#
      • 1...Bxg6
        • 2.Qb6#
      • 1...Bxg8
        • 2.Sd4#
      • 1...f4
        • 2.Sd4#
        • 2.Qe5#
      • 1...Rd2
        • 2.Sg5#
        • 2.Qe5#
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK,XQ(h)
      • Vars
        • P(i);SBLOCK,XR(E)::QAR2(H)
      • Refutation
        • K(g);N_SPINB(d),N_SPINR(e),N_SPINS(j),P-FLIGHT,XR(E)
    • Try
      • Q(H);N_PINS(j),P_PINP(i)
      • Threat
        • DUALS(2)
      • Vars
        • Q(h);N_SPINQ(h),XR(E)::QAR1(H),XP(i)
        • R(b);N_SPINR(e),XB(B)::QAR1(H),XP(i)
        • B(k);N_SPINQ(h),XR(E)::QAB1(H)
        • P(f);::QAB1(H)
        • S(j);N_SPINB(d)::QAR1(H),XP(i)
        • S(j);::QAR1(H),XP(i)
      • Refutation
        • S(j);CHECK
  • Actual
    • P(F);
    • Threat
      • DUALS(4)
    • Vars
      • R(b);N_SPINB(d),XR(A)::QAR1(F)
      • R(b);N_SPINR(e),XB(B)::S(C)
      • B(k);N_SPINQ(h),XR(E)::QAR(F)
      • B(k);N_SPINS(j),XQ(H)::S(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).