MESON Chess Problem Database

Problem Display
PID: 164409 (8/7b/QR6/1n6/8/8/pB3R1K/1k6 w - - 0 1)

Romanovskis, Vladimirs

Sachmatija, 2006

8/7b/QR6/1n6/8/8/pB3R1K/1k6

#2

5 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sa3
      • 2.Qf1#
    • 1...Sd4
      • 2.Qf1#
    • 1...Sd6
      • 2.Qf1#
    • 1...Sa7
      • 2.Qf1#
    • 1...Sc7
      • 2.Qf1#
    • 1...a1Q
      • 2.Qxa1#
    • 1...a1S
      • 2.Qxa1#
    • 1...a1B
      • 2.Qxa1#
    • 1...a1R
      • 2.Qxa1#
  • Tries
    • 1.Qa4?
      • threat
        • 2.Qd1#
      • 1...Bc2
        • 2.Qxc2#
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...Sc3!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Rg1#
      • 1...Bxg6
        • 2.Qxg6#
      • 1...Sc3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • S(c);OGATE::QAR(D)
    • P(b);OGATE::QAR1(D),XQ(b)
    • P(b);OGATE::QAR1(D),XS(b)
    • P(b);OGATE::QAR1(D),XB(b)
    • P(b);OGATE::QAR1(D),XR(b)
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR2(D)
      • Vars
        • B(d);N_GUARD::QAB1(D),XB(d)
        • P(b);OGATE::QAR1(D),XQ(b)
        • P(b);OGATE::QAR1(D),XS(b)
        • P(b);OGATE::QAR1(D),XB(b)
        • P(b);OGATE::QAR1(D),XR(b)
      • Refutation
        • S(c);
  • Actual
    • R(E);
    • Threat
      • R(E)
    • Vars
      • B(d);OGATE,XR(E)::QAB(D),XB(d)
      • S(c);OGATE::QAB(D)
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