MESON Chess Problem Database

Problem Display
PID: 180973 (7k/1p1ppK2/q1b1PpP1/8/1p4P1/Rp6/1Q1n4/3r4 w - - 0 1)

Preiswerk, Walther Edouard

Basler Nachrichten, 1922

7k/1p1ppK2/q1b1PpP1/8/1p4P1/Rp6/1Q1n4/3r4

#2

6 + 11

16108 Walther Preiswerks Shachprobleme (M. Henneberger) 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Ra8#
    • 1...Qe2
      • 2.Ra8#
    • 1...Qd3
      • 2.Ra8#
    • 1...Qc4
      • 2.Ra8#
    • 1...Qb5
      • 2.Ra8#
    • 1...Qa8
      • 2.Rxa8#
    • 1...Sb1
      • 2.Qh2#
    • 1...Sc4
      • 2.Qh2#
    • 1...Se4
      • 2.Qh2#
  • Keys
    • 1.Qc2!
      • threat
        • 2.g7#
      • 1...bxc2
        • 2.Rh3#
      • 1...Qd3
        • 2.Ra8#
      • 1...Be4
        • 2.Qc8#
      • 1...Se4
        • 2.Qh2#
      • 1...f5
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(e);OGATE::R(B)
    • Q(e);OGATE,P_PINP(D)::R(B)
    • Q(e);OGATE::R(B),XQ(e)
    • S(b);OGATE::QAR(A)
  • Actual
    • Q(A);N_PINP(g)
    • Threat
      • P(E)
    • Vars
      • P(c);OGATE,XQ(A)::R(B)
      • Q(e);OGATE::R(B)
      • B(f);OGATE::QAR(A)
      • S(b);OGATE::QAR(A)
      • P(g);OGATEB::QAB(A)
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