MESON Chess Problem Database

Problem Display
PID: 187538 (1N6/4Q3/K2p4/2pk4/8/2p5/2P5/6B1 w - - 0 1)

Lassahn, Holger

Schwabische Zeitung, 2001

(First published on Sat Mar 3 2001)

1N6/4Q3/K2p4/2pk4/8/2p5/2P5/6B1

#2

5 + 4

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qe4#
  • Tries
    • 1.Ka5?
      • 1...Kc4
        • 2.Qe4#
      • 1...c4!
    • 1.Kb6?
      • 1...Kc4
        • 2.Qe4#
      • 1...c4!
    • 1.Bf2?
      • 1...Kc4
        • 2.Qe4#
      • 1...c4!
    • 1.Be3?
      • 1...Kc4
        • 2.Qe4#
      • 1...c4!
    • 1.Qe1?
      • 1...Kc4
        • 2.Qe4#
      • 1...c4!
    • 1.Qe3?
      • 1...Kc4
        • 2.Qe4#
      • 1...c4!
    • 1.Qe8?
      • 1...Kc4
        • 2.Qe4#
      • 1...c4!
  • Keys
    • 1.Sc6!
      • 1...Kc4
        • 2.Qe4#
      • 1...Kxc6
        • 2.Qb7#
      • 1...c4
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAR2(D)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAR2(D)
      • Refutation
        • P(b);
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAR2(D)
      • Refutation
        • P(b);
    • Try
      • B(A);
      • Vars
        • K(c);S_FLIGHT::QAR2(D)
      • Refutation
        • P(b);
    • Try
      • B(A);
      • Vars
        • K(c);S_FLIGHT::QAR2(D)
      • Refutation
        • P(b);
    • Try
      • Q(D);
      • Vars
        • K(c);S_FLIGHT::QAR2(D)
      • Refutation
        • P(b);
    • Try
      • Q(D);
      • Vars
        • K(c);S_FLIGHT::QAR2(D)
      • Refutation
        • P(b);
    • Try
      • Q(D);
      • Vars
        • K(c);S_FLIGHT::QAR2(D)
      • Refutation
        • P(b);
  • Actual
    • S(E);
    • Vars
      • K(c);S_FLIGHT::QAR2(D)
      • K(c);OGATEB,S_FLIGHT,XS(E)::QAB1(D)
      • P(b);N_GUARD,SBLOCK::S(E)
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