MESON Chess Problem Database

Problem Display
PID: 103436 (8/6p1/5RN1/8/K2pk1pq/pQ2N2n/8/8 w - - 0 1)

Aleksandrov, Vladimir Aleksandrovich

Intelectualie Egri, 1992

8/6p1/5RN1/8/K2pk1pq/pQ2N2n/8/8

#2

5 + 7

6490 yacpdb 2009
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sg1
      • 2.Rf4#
    • 1...Sf2
      • 2.Rf4#
    • 1...Sf4
      • 2.Rxf4#
    • 1...Sg5
      • 2.Rf4#
    • 1...dxe3
      • 2.Qc4#
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sd6#
      • 1...Qxf6
        • 2.Sg3#
      • 1...d3
        • 2.Qb7#
      • 1...Qg3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • S(b);N_GUARD::R1(D)
    • S(b);N_GUARD::R1(D),XS(b)
    • P(c);OGATEB,SBLOCK,XS(B)::QAR2(A)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • Q(f);N_GUARD,XR(D)::S(B)
      • P(c);SBLOCK::QAB(A)
      • Q(f);N_GUARD::S(B),XQ(f)
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