MESON Chess Problem Database

Problem Display
PID: 133176 (2q1nN1Q/8/3p1n2/3p1R2/1P1k1B1N/2p2P1K/B1Pp1p2/5Rb1 w - - 0 1)

Dragoescu, Radu

Probleemblad, 1988

2q1nN1Q/8/3p1n2/3p1R2/1P1k1B1N/2p2P1K/B1Pp1p2/5Rb1

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf5+
      • 2.Sxf5#
    • 1...Qa6
      • 2.Se6#
      • 2.Rxd5#
    • 1...Qe6
      • 2.Sxe6#
    • 1...Qb7
      • 2.Se6#
    • 1...Qc4
      • 2.Se6#
    • 1...Qc5
      • 2.Se6#
    • 1...Qc6
      • 2.Se6#
    • 1...Qc7
      • 2.Se6#
      • 2.Rxd5#
    • 1...Qa8
      • 2.Se6#
    • 1...Qb8
      • 2.Se6#
      • 2.Rxd5#
    • 1...Qd8
      • 2.Se6#
      • 2.Rxd5#
    • 1...Sc7
      • 2.Qxf6#
    • 1...d1Q
      • 2.Rxd1#
    • 1...d1S
      • 2.Rxd1#
    • 1...d1B
      • 2.Rxd1#
    • 1...d1R
      • 2.Rxd1#
  • Tries
    • 1.Kg2?
      • threat
        • 2.Rxd5#
      • 1...Qxf5
        • 2.Sxf5#
      • 1...Qe6
        • 2.Sxe6#
      • 1...Qb7
        • 2.Se6#
      • 1...Qc4
        • 2.Se6#
      • 1...Qc5
        • 2.Se6#
      • 1...Qc6
        • 2.Se6#
      • 1...Qa8
        • 2.Se6#
      • 1...Sc7
        • 2.Qxf6#
      • 1...Sg7!
    • 1.Sg2?
      • threat
        • 2.Be3#
      • 1...d1S
        • 2.Rxd1#
      • 1...Qe6
        • 2.Sxe6#
      • 1...Qxf5+!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Be3#
      • 1...Qxf5+
        • 2.Sxf5#
      • 1...d1S
        • 2.Rxd1#
      • 1...Qe6
        • 2.Sxe6#
      • 1...Sg4
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(i);CHECK,XR(I)::S(H),XQ(i)
    • Q(i);N_GUARD::S(J),XQ(i)
    • Q(i);N_GUARD,N_PINR(I)::S(J)
    • S(j);N_GUARD::QAB(K),XS(h)
    • P(b);OGATEB::R(A),XQ(b)
    • P(b);OGATEB::R(A),XS(b)
    • P(b);OGATEB::R(A),XB(b)
    • P(b);OGATEB::R(A),XR(b)
  • Tries
    • Try
      • K(E);N_SPINR(I),S_FLIGHT
      • Threat
        • R1(I),XP(f)
      • Vars
        • Q(i);XR(I)::S(H),XQ(i)
        • Q(i);N_GUARD::S(J),XQ(i)
        • Q(i);N_GUARD::S(J)
        • S(j);N_GUARD::QAB(K),XS(h)
      • Refutation
        • S(j);N_SPINS(h)
    • Try
      • S(H);
      • Threat
        • B(G)
      • Vars
        • P(b);OGATEB::R(A),XS(b)
        • Q(i);N_GUARD::S(J),XQ(i)
      • Refutation
        • Q(i);CHECK,XR(I)
  • Actual
    • Q(K);N_PINS(h)
    • Threat
      • B(G)
    • Vars
      • Q(i);CHECK,XR(I)::S(H),XQ(i)
      • P(b);OGATEB::R(A),XS(b)
      • Q(i);N_GUARD::S(J),XQ(i)
      • S(h);N_PINR(I)::R1(I),XP(f)
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).