MESON Chess Problem Database

Problem Display
PID: 242695 (8/Q4p2/2p1B2p/1brn4/4kP2/1R3N2/2p5/b1B2R1K w - - 0 1)

Hartong, Jan

Parallele 50, 1952

8/Q4p2/2p1B2p/1brn4/4kP2/1R3N2/2p5/b1B2R1K

#2

8 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qd4#
    • 1...Rc4
      • 2.Sd2#
    • 1...Bd4
      • 2.Sd2#
    • 1...Sxf4
      • 2.Re3#
    • 1...fxe6
      • 2.Qh7#
  • Keys
    • 1.Qd7!
      • threat
        • 2.Bf5#
      • 1...Sxf4
        • 2.Re3#
      • 1...fxe6
        • 2.Qh7#
      • 1...Se3
        • 2.Sd2#
      • 1...Sc3
        • 2.Qd4#
      • 1...Sb4
        • 2.Sd2#
      • 1...Sb6
        • 2.Sd2#
      • 1...Sf6
        • 2.Sd2#
      • 1...Sc7
        • 2.Sd2#
      • 1...Se7
        • 2.Sd2#
      • 1...f5
        • 2.Bxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 3
  • Sets
    • R(e);OGATE::QAR1(H)
    • R(e);::S(E)
    • B(a);SBLOCK::S(E)
    • S(f);N_GUARD,SBLOCK,XP(F)::R1(D)
    • P(i);OGATE,XB(G)::QAB(H)
  • Actual
    • Q(H);
    • Threat
      • B(G)
    • Vars
      • S(f);N_GUARD,SBLOCK,XP(F)::R1(D)
      • P(i);OGATE,XB(G)::QAB(H)
      • S(f);::S(E)
      • S(f);OGATE::QAR1(H)
      • P(i);::B(G),XP(i)
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