MESON Chess Problem Database

Problem Display
PID: 15942 (8/8/8/8/R2b4/3N4/7Q/1K1kn3 w - - 0 1)

Dimants, Eduards

Sp. Prize=, Serp i molot, 1989

8/8/8/8/R2b4/3N4/7Q/1K1kn3

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Sb2#
    • 1...Bb2
      • 2.Sxb2#
    • 1...Be3
      • 2.Sb2#
    • 1...Bc5
      • 2.Sb2#
    • 1...Bb6
      • 2.Sb2#
    • 1...Ba7
      • 2.Sb2#
    • 1...Sc2
      • 2.Qxc2#
    • 1...Sf3
      • 2.Qc2#
  • Keys
    • 1.Ra2!
      • threat
        • 2.Rd2#
        • 2.Qd2#
        • 2.Qe2#
      • 1...Sxd3
        • 2.Qd2#
        • 2.Qe2#
      • 1...Bb2
        • 2.Sxb2#
      • 1...Bf2
        • 2.Sxf2#
      • 1...Bc3
        • 2.Sf2#
        • 2.Qe2#
      • 1...Be3
        • 2.Sb2#
        • 2.Qe2#
      • 1...Sc2
        • 2.Qxc2#
      • 1...Sg2
        • 2.Qh5#
      • 1...Sf3
        • 2.Qc2#
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(c);N_GUARD::S(C)
    • B(c);N_GUARD::S(C),XB(c)
    • S(b);N_GUARD::QAB1(B),XS(b)
    • S(b);N_GUARD::QAB1(B)
  • Actual
    • R(D);
    • Threat
      • DUALS(3)
    • Vars
      • B(c);N_GUARD::S(C),XB(c)
      • S(b);N_GUARD::QAB1(B),XS(b)
      • S(b);N_GUARD::QAB(B)
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