MESON Chess Problem Database

Problem Display
PID: 100854 (1n2B2K/1R1p4/2Nkp3/2p5/3p4/3N4/4P3/b2R3Q w - - 0 1)

Berd, Benjamin M

Good Companions, 1921

1n2B2K/1R1p4/2Nkp3/2p5/3p4/3N4/4P3/b2R3Q

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sa6
      • 2.Rxd7#
    • 1...Sxc6
      • 2.Rxd7#
  • Keys
    • 1.e4!
      • threat
        • 2.e5#
      • 1...dxe4 ep+
        • 2.Sb2#
      • 1...Kxc6
        • 2.e5#
      • 1...Sxc6
        • 2.Rxd7#
      • 1...e5
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(g);N_GUARD::R1(F),XP(f)
    • S(g);N_GUARD,XS(E)::R1(F),XP(f)
  • Actual
    • P(C);
    • Threat
      • P(C)
    • Vars
      • P(b);CHECK,EP,XP(C)::R(A)+S(D)
      • K(d);P-FLIGHT,P_SPINP(f),XS(E)::QAB(B)+P(C)
      • S(g);N_GUARD,SBLOCK,XS(E)::R1(F),XP(f)
      • P(e);OGATEB::QAR(B)
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