MESON Chess Problem Database

Problem Display
PID: 108877 (1rQr1nBq/1p2N2N/1b4bp/pP6/K1pPkP2/2P2R2/6P1/7n w - - 0 1)

Leu, Gheorghe

Scacco!, 1998

1rQr1nBq/1p2N2N/1b4bp/pP6/K1pPkP2/2P2R2/6P1/7n

#2

11 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Sxf6#
    • 1...Qxg8
      • 2.Sf6#
    • 1...Rd5
      • 2.Bxd5#
    • 1...Rxc8
      • 2.Bd5#
    • 1...Re8
      • 2.Bd5#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Bh5
      • 2.Qf5#
    • 1...Bf7
      • 2.Qf5#
    • 1...Be8
      • 2.Qf5#
    • 1...Sd7
      • 2.Bd5#
    • 1...h5
      • 2.Sg5#
  • Tries
    • 1.Qe6+?
      • 1...Qe5
        • 2.Sf6#
        • 2.Qxe5#
      • 1...Sxe6!
    • 1.Qxb7+?
      • 1...Rd5
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Rxb7!
    • 1.Qc6+?
      • 1...Rd5
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...bxc6!
  • Keys
    • 1.Qxc4!
      • threat
        • 2.Qe2#
        • 2.Qd3#
      • 1...Qxd4
        • 2.Sf6#
      • 1...Rxd4
        • 2.Bd5#
      • 1...Bxd4
        • 2.Qd3#
      • 1...Sf2
        • 2.Qe2#
      • 1...Sg3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 11
  • Sets
    • Q(l);N_GUARD::S(I),XQ(l)
    • Q(l);N_GUARD,XB(K)::S(I)
    • R(j);N_GUARD::B(K),XR(j)
    • R(j);N_GUARD,XQ(J)::B(K)
    • R(j);N_GUARD::B(K)
    • B(f);N_GUARD::QAB1(J),XB(f)
    • B(f);N_GUARD::QAB1(J)
    • B(f);N_GUARD,P_PINP(G)::QAB1(J)
    • S(k);S_CUTR(j)::B(K)
    • P(g);N_GUARD::S(I)
  • Tries
    • Try
      • Q(J);CHECK
      • Refutation
        • S(k);XQ(J)
    • Try
      • Q(J);CHECK,XP(h)
      • Refutation
        • R(i);XQ(J)
    • Try
      • Q(J);CHECK
      • Refutation
        • P(h);XQ(J)
  • Actual
    • Q(J);XP(b)
    • Threat
      • DUALS(2)
    • Vars
      • Q(l);N_GUARD,P_PINQ(J),P_SPINQ(l),XP(E)::S(I)
      • R(j);N_GUARD,P_PINQ(J),P_SPINR(j),XP(E)::B(K)
      • B(e);P_SPINB(e),XP(E)::QAB1(J)
      • S(a);::QAR2(J)
      • S(a);::QAB1(J)
HTML5 logo

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).