MESON Chess Problem Database

Problem Display
PID: 166963 (8/1B6/8/8/7p/1p6/b5qp/R1Q1K2k w Q - 0 1)

Dubrovski, V

Sachmatija, 2010

8/1B6/8/8/7p/1p6/b5qp/R1Q1K2k

#2

4 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4+
      • 2.Kf2#
    • 1...Qd5
      • 2.Kf2#
    • 1...Qc6
      • 2.Kf2#
    • 1...Qxb7
      • 2.Kf2#
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qxg2#
        • 2.0-0-0#
      • 1...Qe4+
        • 2.Bxe4#
      • 1...Kg1
        • 2.Qxg2#
      • 1...Qxb7
        • 2.0-0-0#
      • 1...Qf3
        • 2.Bxf3#
      • 1...Qd5
        • 2.Bxd5#
      • 1...Qc6
        • 2.Bxc6#
      • 1...Bb1
        • 2.Qxg2#
      • 1...b2
        • 2.Qxg2#
      • 1...h3
        • 2.0-0-0#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(c);CHECK::QAR(B)+K(C)
    • Q(c);::QAR(B)+K(C)
    • Q(c);N_SPINQ(c),XB(D)::QAR(B)+K(C)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • Q(c);CHECK,OGATEB::B(D),XQ(c)
      • K(a);P-FLIGHT::QAR1(B),XQ(c)
      • Q(c);N_SPINQ(c),XB(D)::0-0-0
      • Q(c);OGATEB::B(D),XQ(c)
      • B(b);::QAB1(B),XQ(c)
      • P(e);::QAB1(B),XQ(c)
      • P(f);::0-0-0
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