MESON Chess Problem Database

Problem Display
PID: 16461 (8/1B6/8/3q3r/6N1/4p3/4R2B/R3K2k w Q - 0 1)

Svedberg, Erik Daniel

Tidskrift for Schack, 1940

8/1B6/8/3q3r/6N1/4p3/4R2B/R3K2k

#2

6 + 4

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Bxg2#
      • 2.0-0-0#
    • 1...Qf3
      • 2.Bxf3#
      • 2.0-0-0#
    • 1...Qe4
      • 2.Bxe4#
      • 2.0-0-0#
    • 1...Qxb7
      • 2.0-0-0#
    • 1...Rh4
      • 2.Bxd5#
    • 1...Rh6
      • 2.Bxd5#
    • 1...Rh7
      • 2.Bxd5#
    • 1...Rh8
      • 2.Bxd5#
  • Keys
    • 1.Rf2!
      • threat
        • 2.Ke2#
      • 1...exf2+
        • 2.Kxf2#
      • 1...Qxb7
        • 2.0-0-0#
      • 1...Qf3
        • 2.Bxf3#
      • 1...e2
        • 2.Kxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(c);N_SPINQ(c),XB(F)::0-0-0
    • R(d);N_GUARD::B(F),XQ(c)
  • Actual
    • R(C);
    • Threat
      • R(A)+K(B)
    • Vars
      • P(b);CHECK,XR(C)::R(A)+K(B),XP(b)
      • Q(c);N_SPINQ(c),XB(F)::0-0-0
      • Q(c);OGATE::B(F),XQ(c)
      • P(b);::R(A)+K(B),XP(b)
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