MESON Chess Problem Database

Problem Display
PID: 214760 (8/8/2K1pp2/R1N1k3/3R4/4p3/2prB3/r1Q5 w - - 0 1)

Charlick, Henry Walter

Detroit Free Press, 1877

8/8/2K1pp2/R1N1k3/3R4/4p3/2prB3/r1Q5

#2

6 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qb2#
      • 2.Qxa1#
    • 1...Rb1
      • 2.Sb3#
    • 1...Rxc1
      • 2.Sb3#
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qe4#
      • 1...Kxd4
        • 2.Qxa1#
      • 1...Kf5
        • 2.Qh5#
      • 1...Rxh1
        • 2.Sb3#
      • 1...Rxd4
        • 2.Sd3#
      • 1...f5
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(a);N_GUARD::R(D)+S(E)
    • R(a);N_GUARD,XQ(A)::R(D)+S(E)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(C)::QAB(A),XR(a)
      • K(e);P-FLIGHT::QAR2(A)
      • R(a);N_GUARD,XQ(A)::R(D)+S(E)
      • R(c);SBLOCK,XR(C)::R(D)+S(E),DCHECK
      • P(g);OGATEB,SBLOCK::QAB(A)
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