MESON Chess Problem Database

Problem Display
PID: 49829 (3bb3/4pp2/pp6/k3p3/p7/p1KQ4/8/8 w - - 0 1)

Anonymous

1st Prize, Tagliche Rundschau, 1909

3bb3/4pp2/pp6/k3p3/p7/p1KQ4/8/8

#2

2 + 10

16 Chess Amateur (The) 1909
15 British Chess Magazine 1911
1842 The White King 1914
274 diagrammes 1973
3713 Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Qxd8#
  • Tries
    • 1.Qe4?
      • threat
        • 2.Qb4#
      • 1...Kb5
        • 2.Qd5#
      • 1...b5!
    • 1.Qd4?
      • threat
        • 2.Qb4#
      • 1...Kb5
        • 2.Qd5#
      • 1...b5
        • 2.Qxd8#
      • 1...exd4+!
    • 1.Qd5+?
      • 1...b5
        • 2.Qxd8#
      • 1...Bb5!
    • 1.Qd6?
      • threat
        • 2.Qb4#
      • 1...Kb5
        • 2.Qd5#
      • 1...b5
        • 2.Qxd8#
      • 1...exd6!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Kc4#
      • 1...Kb5
        • 2.Qd5#
      • 1...Bb5
        • 2.Kc2#
      • 1...b5
        • 2.Qxd8#

Anticipated by 109701(1901)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(f);OGATEB,SBLOCK::QAB(B),XB(i)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);P-FLIGHT::QAR2(B)
      • Refutation
        • P(f);
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);P-FLIGHT::QAR2(B)
        • P(f);OGATEB,SBLOCK::QAB(B),XB(i)
      • Refutation
        • P(d);CHECK,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • P(f);OGATEB,P_SPINP(f),SBLOCK::QAB(B),XB(i)
      • Refutation
        • B(j);P_SPINB(j)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);P-FLIGHT::QAR2(B)
        • P(f);OGATEB,SBLOCK::QAB(B),XB(i)
      • Refutation
        • P(g);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)+K(A)
    • Vars
      • K(c);P-FLIGHT::QAR2(B)
      • B(j);SBLOCK::QAB(B)+K(A)
      • P(f);OGATEB,SBLOCK::QAB(B),XB(i)
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