MESON Chess Problem Database

Problem Display
PID: 103701 (2B5/B7/4r2P/4kN1p/8/3P4/7K/6Q1 w - - 0 1)

Rowland, Thomas B

Ottawa Citizen, 1885

2B5/B7/4r2P/4kN1p/8/3P4/7K/6Q1

#2

7 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qc5#
    • 1...Ra6
      • 2.Qd4#
    • 1...Rb6
      • 2.Qd4#
    • 1...Rc6
      • 2.Qd4#
    • 1...Rf6
      • 2.Qd4#
    • 1...Rg6
      • 2.Qd4#
    • 1...Rxh6
      • 2.Qd4#
    • 1...Re7
      • 2.Qd4#
    • 1...Re8
      • 2.Qd4#
  • Tries
    • 1.Sh4?
      • threat
        • 2.Qd4#
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qg7#
      • 1...Rd6
        • 2.Qg5#
      • 1...Rb6!
    • 1.Se7?
      • threat
        • 2.Qd4#
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qg7#
      • 1...Rd6
        • 2.Qg5#
      • 1...Rb6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qd4#
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kxd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qg7#
      • 1...Rxd6
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • K(a);P-FLIGHT::QAR1(A)
    • R(c);::QAB1(A)
    • R(c);SBLOCK::QAB1(A)
    • R(c);XP(E)::QAB1(A)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);P-FLIGHT::QAR1(A)
        • R(c);SBLOCK::QAR2(A)
      • Refutation
        • R(c);
    • Try
      • S(D);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • R(c);SBLOCK::QAR2(A)
      • Refutation
        • R(c);
  • Actual
    • S(D);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT,XS(D)::QAB1(A)
      • R(c);SBLOCK,XS(D)::QAR2(A)
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Developed and maintained by Brian Stephenson.
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