MESON Chess Problem Database

Problem Display
PID: 22002 (8/5p2/8/8/1B3K2/6N1/5kpQ/8 w - - 0 1)

Leopold, Dr Rudolf L

Deutsche Schachzeitung, 1923

8/5p2/8/8/1B3K2/6N1/5kpQ/8

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
3310 2345 Chess Problems 1997
133 The Problemist Supplement 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qh5?
      • threat
        • 2.Qc5#
      • 1...Kg1
        • 2.Bc5#
      • 1...g1Q
        • 2.Qe2#
        • 2.Qf3#
      • 1...g1S
        • 2.Qh2#
      • 1...g1B
        • 2.Qe2#
        • 2.Qf3#
      • 1...g1R
        • 2.Qe2#
        • 2.Qf3#
      • 1...f5!
    • 1.Qh8?
      • threat
        • 2.Qd4#
      • 1...Kg1
        • 2.Bc5#
      • 1...g1Q
        • 2.Qb2#
      • 1...g1S
        • 2.Qh2#
      • 1...g1B
        • 2.Qb2#
      • 1...g1R
        • 2.Qb2#
      • 1...f6!
  • Keys
    • 1.Qh7!
      • 1...Kg1
        • 2.Bc5#
      • 1...g1Q
        • 2.Qc2#
      • 1...g1S
        • 2.Qh2#
      • 1...g1B
        • 2.Qc2#
      • 1...g1R
        • 2.Qc2#
      • 1...f6
        • 2.Qa7#
      • 1...f5
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);N_PINP(b)
      • Threat
        • QAB(A)
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);OGATEB::QAR2(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);N_PINP(b)
      • Threat
        • QAB(A)
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::QAR(A)
        • P(b);OGATEB::QAR2(A)
      • Refutation
        • P(c);
  • Actual
    • Q(A);N_PINP(b)
    • Vars
      • K(a);S_FLIGHT::B(C)
      • P(b);SBLOCK::QAR(A)
      • P(b);OGATEB::QAR2(A)
      • P(c);OGATE::QAB(A)
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