MESON Chess Problem Database

Problem Display
PID: 231635 (Q2n4/1P3b2/K1RB2B1/3k4/3pr3/1P1N4/8/8 w - - 0 1)

Green, RB

San Francisco Chronicle, 1927

Q2n4/1P3b2/K1RB2B1/3k4/3pr3/1P1N4/8/8

#2

8 + 5

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Sb4#
    • 1...Be6
      • 2.Sb4#
    • 1...Se6
      • 2.Sb4#
  • Keys
    • 1.Be5!
      • threat
        • 2.Rd6#
      • 1...Kxc6
        • 2.b8S#
      • 1...Rxe5
        • 2.Sb4#
      • 1...Sxc6
        • 2.Bxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(b);SBLOCK::S(B)
    • B(d);SBLOCK::S(B)
    • S(e);SBLOCK::S(B)
  • Actual
    • B(E);
    • Threat
      • R1(D)
    • Vars
      • K(c);S_FLIGHT,XR(D)::P=S
      • R(b);SBLOCK,XB(E)::S(B)
      • S(e);N_GUARD,SBLOCK,XR(D)::B(F),XB(d)
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