MESON Chess Problem Database

Problem Display
PID: 129815 (5b2/r2B4/8/3N4/7n/k1p2b1Q/3N4/K7 w - - 0 1)

Mikan, Ilja

Duvtip, 1931

5b2/r2B4/8/3N4/7n/k1p2b1Q/3N4/K7

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Qxc3#
    • 1...Be2
      • 2.Qxc3#
    • 1...Bg2
      • 2.Qxc3#
    • 1...Be4
      • 2.Qxc3#
    • 1...Bg4
      • 2.Qxc3#
    • 1...Bh5
      • 2.Qxc3#
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qc1#
      • 1...Rxd7
        • 2.Qa6#
      • 1...Bxd5
        • 2.Qxf8#
      • 1...cxd2
        • 2.Qd3#
      • 1...Rb7
        • 2.Qa6#
      • 1...Bd1
        • 2.Qxf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • B(c);OGATE,P_SPINP(b),SBLOCK::QAR2(C),XP(b)
    • B(c);OGATE,P_SPINP(b)::QAR2(C),XP(b)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • R(e);N_GUARD,XB(E)::QAR(C)
      • B(c);OGATE,XS(D)::QAB(C),XB(f)
      • P(b);OGATEB,XS(B)::QAR(C)
      • R(e);N_GUARD::QAR(C)
      • B(c);OGATE::QAB(C),XB(f)
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