MESON Chess Problem Database

Problem Display
PID: 233466 (5n1N/1K4p1/1p5B/7p/7k/5QbP/3NP2R/4q2b w - - 0 1)

Rosenthal, Moisej Schlemowitsch

Freie Presse, 1965

5n1N/1K4p1/1p5B/7p/7k/5QbP/3NP2R/4q2b

#2

8 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf3+
      • 2.Sxf3#
    • 1...Se6
      • 2.Sg6#
    • 1...Sg6
      • 2.Sxg6#
    • 1...Sd7
      • 2.Sg6#
    • 1...Sh7
      • 2.Sg6#
  • Keys
    • 1.Se4!
      • threat
        • 2.Bg5#
      • 1...gxh6
        • 2.Qf6#
      • 1...Qd2
        • 2.Qxg3#
      • 1...Qa5
        • 2.Qxg3#
      • 1...Qc1
        • 2.Qxg3#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Se6
        • 2.Sg6#
      • 1...Sh7
        • 2.Sg6#
      • 1...g5
        • 2.Bxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • B(b);CHECK,XQ(D)::S(A),XB(b)
    • S(h);N_GUARD::S(H)
    • S(h);N_GUARD::S(H),XS(h)
  • Actual
    • S(A);N_SPINQ(D)
    • Threat
      • B(F)
    • Vars
      • P(g);N_GUARD,XB(F)::QAB(D)
      • Q(a);N_GUARD::QAB1(D),XB(c)
      • Q(a);N_GUARD,SBLOCK::QAB1(D),XB(c)
      • B(c);N_GUARD::QAR2(D),XB(c)
      • S(h);N_GUARD::S(H)
      • P(g);::B(F),XP(g)
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