MESON Chess Problem Database

Problem Display
PID: 102200 (8/4p3/3b2Q1/1B1k4/8/8/2K2B2/8 w - - 0 1)

Andersson, Gunnar

Dagens Nyheter, 1930

8/4p3/3b2Q1/1B1k4/8/8/2K2B2/8

#2

4 + 3

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Qc6#
  • Keys
    • 1.Bd7!
      • threat
        • 2.Qe6#
      • 1...Kc4
        • 2.Qe4#
      • 1...Ke5
        • 2.Qf5#
      • 1...Be5
        • 2.Qc6#
      • 1...e5
        • 2.Qd3#
      • 1...e6
        • 2.Qxe6#

This anticipates 22159(1963)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATE,SBLOCK::QAB1(D)
  • Actual
    • B(C);
    • Threat
      • QAB1(D)
    • Vars
      • K(a);S_FLIGHT::QAR2(D)
      • K(a);P-FLIGHT::QAR1(D)
      • B(b);OGATE,SBLOCK::QAB1(D)
      • P(c);SBLOCK::QAR2(D)
      • P(c);::QAB1(D),XP(c)
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