MESON Chess Problem Database

Problem Display
PID: 87744 (2Q2n2/8/4nprb/2pP1k1p/K1N3rP/5P1B/7B/8 w - - 0 1)

Rasmussen, Knud AK

American Chess Problemist, 1950

2Q2n2/8/4nprb/2pP1k1p/K1N3rP/5P1B/7B/8

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sh7
      • 2.Qxe6#
  • Tries
    • 1.Bxg4+?
      • 1...hxg4
        • 2.Sd6#
      • 1...Rxg4!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qb1#
      • 1...Sd4
        • 2.Sd6#
      • 1...Sf4
        • 2.Se3#
      • 1...Sg5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(i);N_GUARD::QAB1(H),XS(e)
  • Tries
    • Try
      • B(C);CHECK,N_SPINS(E),XR(a)
      • Vars
        • P(d);XB(C)::S(E)
      • Refutation
        • R(g);P_PINS(E),XB(C)
  • Actual
    • Q(H);N_PINS(e)
    • Threat
      • QAB(H)
    • Vars
      • S(e);N_PINS(E)::S(E)
      • S(e);N_GUARD,S_CUTB(h)::QAR1(H)
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