MESON Chess Problem Database

Problem Display
PID: 119802 (3K4/8/2p1Q3/3N4/2r5/3N4/2npP3/3k4 w - - 0 1)

Burmeister, Albert M

Shakhmatnoe obozrenie, 1902

3K4/8/2p1Q3/3N4/2r5/3N4/2npP3/3k4

#2

5 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Sxc3#
    • 1...Ra4
      • 2.Sc3#
    • 1...Rb4
      • 2.Sc3#
    • 1...Re4
      • 2.Sc3#
    • 1...Rf4
      • 2.Sc3#
    • 1...Rg4
      • 2.Sc3#
    • 1...Rh4
      • 2.Sc3#
  • Keys
    • 1.Qg4!
      • threat
        • 2.e4#
      • 1...Rxg4
        • 2.Sc3#
      • 1...Sa1
        • 2.Se3#
      • 1...Se1
        • 2.Se3#
      • 1...Sa3
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sb4
        • 2.Se3#
      • 1...Sd4
        • 2.Se3#
      • 1...Re4
        • 2.Sc3#
      • 1...Rf4
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • R(d);N_GUARD::S(C),XR(d)
    • R(d);N_GUARD::S(C)
  • Actual
    • Q(D);
    • Threat
      • QAB(D)+P(A)
    • Vars
      • R(d);N_GUARD,XQ(D)::S(C)
      • S(b);N_GUARD::S(C)
      • S(b);N_GUARD::S(C),XS(b)
      • R(d);N_GUARD::S(C)
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