MESON Chess Problem Database

Problem Display
PID: 194818 (B7/4Q3/5p1n/2PPrP2/3Nk1p1/8/b2KN1P1/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Die Schwalbe, 2018

B7/4Q3/5p1n/2PPrP2/3Nk1p1/8/b2KN1P1/8

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Qxe6#
    • 1...Bb1
      • 2.d6#
  • Keys
    • 1.Se6!
      • threat
        • 2.Sg3#
      • 1...Rxd5+
        • 2.S6d4#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Rxf5
        • 2.Sg5#
      • 1...Rxe6
        • 2.Qxe6#
      • 1...Sxf5
        • 2.Sc3#
      • 1...g3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(d);OGATEB::QAR2(H),XR(d)
    • B(a);N_GUARD::B(I)+P(F)
  • Actual
    • S(D);N_PINR(d)
    • Threat
      • S(B)
    • Vars
      • R(d);CHECK,P_SPINR(d),XP(F)::QAR(H)+S(D)
      • K(b);OGATEB,S_FLIGHT,XP(G)::QAB(H)
      • R(d);SBLOCK,XP(G)::QAR(H)+S(D),DCHECK
      • R(d);OGATE,P_SPINR(d),XS(D)::QAR2(H),XR(d)
      • S(f);SBLOCK,XP(G)::S(B)
      • P(c);::S(B),XP(c)
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Developed and maintained by Brian Stephenson.
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