MESON Chess Problem Database

Problem Display
PID: 133209 (N1Q5/3K3p/3p4/1k5r/7r/pN1P4/2B5/6B1 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Lebedev, Danilo

Leipziger Volkszeitung, 1998

N1Q5/3K3p/3p4/1k5r/7r/pN1P4/2B5/6B1

#2

7 + 6

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qc4#
    • 1...Rh2
      • 2.Qc4#
    • 1...Rh3
      • 2.Qc4#
    • 1...Ra4
      • 2.Qb7#
    • 1...Rb4
      • 2.Qc6#
    • 1...Rc4
      • 2.Qxc4#
  • Tries
    • 1.Qb8+?
      • 1...Ka6
        • 2.Sc7#
        • 2.Qb6#
      • 1...Ka4!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qa5#
      • 1...Ka4
        • 2.Sd4#
      • 1...Ka6
        • 2.Qc6#
      • 1...Ra4
        • 2.Sc7#
      • 1...Rb4
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::QAB1(G)
    • R(b);SBLOCK::QAR2(G)
    • R(b);SBLOCK::QAB1(G)
    • R(b);N_GUARD::QAB1(G),XR(b)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • K(c);S_FLIGHT::B(B)+S(C)
      • K(c);S_FLIGHT::QAR2(G)
      • R(b);SBLOCK::S(F)
      • R(b);SBLOCK::QAB1(G)
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