MESON Chess Problem Database

Problem Display
PID: 235120 (5Q2/2B1N3/KN2kP2/pR3p2/B5rq/1p6/4bp2/2n1R3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schach, 1951

5Q2/2B1N3/KN2kP2/pR3p2/B5rq/1p6/4bp2/2n1R3

#2

9 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Re5#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Sd8#
        • 2.Qe7#
      • 1...Qh7
        • 2.Sd8#
      • 1...Rd4
        • 2.Qe7#
      • 1...Rg7
        • 2.Sd8#
      • 1...Qxf6!
    • 1.Bxb3+?
      • 1...Rc4
        • 2.Re5#
      • 1...Sxb3!
    • 1.Rxe2+?
      • 1...Sxe2
        • 2.Re5#
      • 1...Re4!
    • 1.Qg8+?
      • 1...Kxf6
        • 2.Sbd5#
        • 2.Sed5#
      • 1...Rxg8!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sc5#
      • 1...Kxd7
        • 2.Qc8#
      • 1...Rc4
        • 2.Re5#
      • 1...Sd3
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(e);N_PINR(C)::R1(C)
  • Tries
    • Try
      • S(H);
      • Threat
        • DUALS(2)
      • Vars
        • Q(f);::S(H)
        • R(e);::QAR1(I)
        • R(e);::S(H)
      • Refutation
        • Q(f);XP(F)
    • Try
      • B(B);CHECK,XP(d)
      • Vars
        • R(e);N_PINR(C),P_SPINR(e)::R1(C)
      • Refutation
        • S(a);XB(B)
    • Try
      • R(A);CHECK,N_SPINR(C),XB(b)
      • Vars
        • S(a);XR(A)::R1(C)
      • Refutation
        • R(e);P_SPINR(e)
    • Try
      • Q(I);CHECK
      • Refutation
        • R(e);XQ(I)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(i);N_SPINB(b),OGATEB,S_FLIGHT,XS(E)::QAB1(I)
      • R(e);N_PINR(C)::R1(C)
      • S(a);N_PINR(C)::R(C)
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