MESON Chess Problem Database

Problem Display
PID: 119809 (k7/2Bp4/p1P1r2r/1N1Qb3/7p/8/8/1K6 w - - 0 1)

Stockman, Curt Sixten Gabriel

Aftonbladet, 1916

k7/2Bp4/p1P1r2r/1N1Qb3/7p/8/8/1K6

#2

5 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Qg8#
    • 1...Bd6
      • 2.cxd7#
    • 1...axb5
      • 2.Qa2#
  • Tries
    • 1.Qc5?
      • threat
        • 2.Qa7#
      • 1...axb5
        • 2.Qa3#
      • 1...Bd4!
  • Keys
    • 1.Bd6!
      • threat
        • 2.cxd7#
        • 2.c7#
      • 1...Rxd6
        • 2.Qg8#
      • 1...Bxd6
        • 2.c7#
      • 1...axb5
        • 2.Qa2#
      • 1...dxc6
        • 2.Qxc6#

There are these versions: 193780

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(d);OGATE::QAR(C)
    • B(b);S_CUTR(d)::QAB(C)+P(D),XP(f)
    • P(c);OGATEB,XS(B)::QAR(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • P(c);OGATEB,XS(B)::QAR(C)
      • Refutation
        • B(b);
  • Actual
    • B(E);
    • Threat
      • DUALS(2)
    • Vars
      • R(d);OGATE,XB(E)::QAR(C)
      • B(b);XB(E)::QAB(C)+P(D)
      • P(c);OGATEB,XS(B)::QAR(C)
      • P(f);OGATE,P_SPINP(f),XP(D)::QAB(C),XP(f)
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