MESON Chess Problem Database

Problem Display
PID: 4636 (8/5NPK/4pk2/8/4B3/1Q6/8/8 w - - 0 1)

von Gottschall, Hermann

Deutsche Schachzeitung, 1892

8/5NPK/4pk2/8/4B3/1Q6/8/8

#2

5 + 2

3757 Schachminiaturen I 1902
1829 The Theory of Pawn Promotion 1912
3360 Simple Two-move Themes 1924
5501 Chess Cameos 1936
3295 Einfuhrung in die Welt des Schachproblem 1984
3310 2345 Chess Problems 1997
5503 ISC 2007
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.g8S#
  • Tries
    • 1.Qa3?
      • 1...Kxf7
        • 2.Qf8#
      • 1...e5!
    • 1.Qb4?
      • 1...Kxf7
        • 2.Qf8#
      • 1...e5!
    • 1.g8Q?
      • 1...e5
        • 2.Qg5#
        • 2.Qd8#
      • 1...Ke7!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Qxe6#
      • 1...Kxf5
        • 2.Qf3#
      • 1...Ke7
        • 2.Qxe6#
      • 1...Kxf7
        • 2.Qxe6#
      • 1...exf5
        • 2.g8S#
      • 1...e5
        • 2.Qe6#

This anticipates 78167(1896)

This is a version of 249581

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(a);::P=S
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(C)::QAR1(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(C)::QAR1(A)
      • Refutation
        • P(a);
    • Try
      • P(D);
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(B);
    • Threat
      • QAR1(A),XP(a)
    • Vars
      • K(b);OGATEB,P-FLIGHT,XB(B)::QAR2(A)
      • K(b);S_FLIGHT::QAR1(A),XP(a)
      • K(b);P-FLIGHT,P_SPINP(a),XS(C)::QAB1(A),XP(a)
      • P(a);SBLOCK,XB(B)::P=S
      • P(a);::QAR1(A)
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