MESON Chess Problem Database

Problem Display
PID: 224766 (5q1Q/2P1kp2/5N2/2K3P1/1N4p1/B7/7r/8 w - - 0 1)

Calthrop, Samuel Robert

Syracuse Sunday Herald, 1887

5q1Q/2P1kp2/5N2/2K3P1/1N4p1/B7/7r/8

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qh6
      • 2.Qe8#
    • 1...Qg7
      • 2.Qe8#
    • 1...Qe8
      • 2.Qxe8#
  • Keys
    • 1.Kd5!
      • threat
        • 2.Sa2#
        • 2.Sc2#
        • 2.Sd3#
        • 2.Sa6#
        • 2.Sc6#
      • 1...Qa8+
        • 2.Sc6#
      • 1...Qd8+
        • 2.Qxd8#
        • 2.cxd8Q#
        • 2.cxd8B#
      • 1...Rd2+
        • 2.Sd3#
      • 1...Qb8
        • 2.Sc6#
      • 1...Ra2
        • 2.Sxa2#
        • 2.Sc6#
      • 1...Rb2
        • 2.Sc6#
      • 1...Rc2
        • 2.Sxc2#
        • 2.Sc6#
      • 1...Rh3
        • 2.Sd3#
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • Q(e);OGATE::QAR1(G)
    • Q(e);OGATE::QAR1(G),XQ(e)
  • Actual
    • K(C);P-FLIGHT
    • Threat
      • DUALS(5)
    • Vars
      • Q(e);CHECK::B(A)+S(B),DCHECK
      • R(a);CHECK::B(A)+S(B)
      • Q(e);::B(A)+S(B),DCHECK
      • R(a);::B(A)+S(B),DCHECK
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