MESON Chess Problem Database

Problem Display
PID: 143900 (5KB1/Q2p4/2R5/3N1NR1/1p2k2P/1q5p/5n2/1b6 w - - 0 1)

Dutton, LA

2nd Prize, Western Daily Mercury, 1905

5KB1/Q2p4/2R5/3N1NR1/1p2k2P/1q5p/5n2/1b6

#2

8 + 7

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qe3#
    • 1...Ke5
      • 2.Qd4#
    • 1...Qd1
      • 2.Qe3#
    • 1...Qa2
      • 2.Qe3#
    • 1...Qc2
      • 2.Qe3#
    • 1...Qa4
      • 2.Qe3#
    • 1...Qc4
      • 2.Qe3#
    • 1...Qxd5
      • 2.Qe3#
    • 1...Qb2
      • 2.Qe3#
    • 1...Qe3
      • 2.Qxe3#
    • 1...Qf3
      • 2.Qd4#
    • 1...Bd3
      • 2.Qe3#
    • 1...Sd3
      • 2.Qe3#
  • Tries
    • 1.Sd6+?
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3!
    • 1.Rc3?
      • threat
        • 2.Sg3#
        • 2.Sd6#
        • 2.Qe3#
        • 2.Qd4#
      • 1...Ke5
        • 2.Qd4#
      • 1...Qxd5
        • 2.Qe3#
      • 1...bxc3
        • 2.Qe3#
      • 1...Bd3
        • 2.Qe3#
      • 1...Sd3
        • 2.Qe3#
      • 1...Qd1
        • 2.Sg3#
        • 2.Sd6#
        • 2.Re3#
        • 2.Qe3#
      • 1...Qc4
        • 2.Sg3#
        • 2.Sd6#
        • 2.Re3#
        • 2.Qe3#
      • 1...Sd1
        • 2.Sg3#
        • 2.Sd6#
        • 2.Qd4#
      • 1...Sh1
        • 2.Sd6#
        • 2.Qe3#
        • 2.Qd4#
      • 1...Sg4
        • 2.Sg3#
        • 2.Sd6#
        • 2.Qd4#
      • 1...d6
        • 2.Sg3#
        • 2.Sxd6#
        • 2.Qe3#
        • 2.Qd4#
        • 2.Qe7#
      • 1...Qxc3!
  • Keys
    • 1.Bh7!
      • threat
        • 2.Sd4#
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3
        • 2.Sd4#
      • 1...Kxd5
        • 2.Se7#
      • 1...Ke5
        • 2.Qd4#
      • 1...Qxd5
        • 2.Qe3#
      • 1...Qf3
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • K(f);S_FLIGHT::QAR1(F)
    • K(f);P-FLIGHT::QAB1(F)
    • Q(c);N_GUARD::QAR1(F)
    • Q(c);N_GUARD,XS(B)::QAR1(F)
    • Q(c);N_GUARD::QAR1(F),XQ(c)
    • Q(c);P_PINS(C),SBLOCK::QAR1(F)
    • B(a);S_CUTQ(c)::QAR1(F)
    • S(b);S_CUTQ(c)::QAR1(F)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(f);S_FLIGHT::QAR1(F)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • R(E);
      • Threat
        • DUALS(4)
      • Vars
        • K(f);P-FLIGHT::QAB1(F)
        • Q(c);XS(B)::QAR1(F)
        • P(e);XR(E)::QAR1(F)
        • B(a);::QAR1(F)
        • S(b);::QAR1(F)
      • Refutation
        • Q(c);XR(E)
  • Actual
    • B(H);
    • Threat
      • B(H)+S(C)
    • Vars
      • K(f);S_FLIGHT::QAR1(F)
      • K(f);S_FLIGHT::S(C)
      • K(f);S_FLIGHT,XS(B)::R(D)+S(C),DCHECK
      • K(f);P-FLIGHT::QAB1(F)
      • Q(c);N_GUARD,SBLOCK,XS(B)::QAR1(F)
      • Q(c);P_PINS(C),SBLOCK::QAR1(F)
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