MESON Chess Problem Database

Problem Display
PID: 263321 (2R2N1k/3P1P2/4N3/K2p1p1r/pp6/1pqQ1bpR/1B2n3/4r3 w - - 0 1)

Hjelle, David

Szachy, 1947

2R2N1k/3P1P2/4N3/K2p1p1r/pp6/1pqQ1bpR/1B2n3/4r3

#2

9 + 12

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Bxe5#
    • 1...Qf6
      • 2.Bxf6#
    • 1...Qg7
      • 2.Bxg7#
    • 1...Rh6
      • 2.Rxh6#
    • 1...Rh7
      • 2.Sg6#
      • 2.Sxh7#
      • 2.Rxh7#
    • 1...Bh1
      • 2.Rxh5#
    • 1...Bg2
      • 2.Rxh5#
    • 1...Be4
      • 2.Rxh5#
    • 1...f4
      • 2.Sh7#
  • Keys
    • 1.Qxf5!
      • threat
        • 2.Sh7#
      • 1...Sd4
        • 2.Qf6#
      • 1...Rh7
        • 2.Sg6#
        • 2.Sxh7#
        • 2.Rxh7#
        • 2.Qxh7#
      • 1...d4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(d);OGATE::B(A),XQ(d)
    • R(k);OGATE::R(C),XR(k)
    • B(e);N_GUARD::R(C),XR(k)
    • P(j);::R(H)+S(I)
  • Actual
    • Q(B);XP(j)
    • Threat
      • R(H)+S(I)
    • Vars
      • S(b);N_SPINQ(d),S_CUTQ(d)::QAB(B)
      • P(i);N_SPINQ(d),P_PINQ(B),S_CUTQ(d)::QAB(B)
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Developed and maintained by Brian Stephenson.
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