MESON Chess Problem Database

Problem Display
PID: 253694 (BQ6/3pR1K1/8/p1rNN3/4k1Pp/2n2p2/2P2P2/8 w - - 0 1)

Bachl, Ernst

Suddeutsche Schachzeitung, 1954

BQ6/3pR1K1/8/p1rNN3/4k1Pp/2n2p2/2P2P2/8

#2

9 + 7

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qb4+?
      • 1...Rc4
        • 2.Qxc4#
      • 1...axb4!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Sc6#
      • 1...Kd4
        • 2.Sxf3#
      • 1...Rxd5
        • 2.Qc4#
      • 1...Sxd5
        • 2.Qe3#
      • 1...Rc4
        • 2.Qxc4#
      • 1...Rc6
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::QAR2(I),XR(f)
      • Refutation
        • P(e);XQ(I)
  • Actual
    • Q(I);
    • Threat
      • R(F)+S(E)
    • Vars
      • K(c);N_GUARD,P-FLIGHT::S(E),XP(b)
      • R(f);N_GUARD,P_SPINR(f),XS(D)::QAR2(I)
      • S(a);OGATE,P_SPINS(a),XS(D)::QAR1(I)
      • R(f);N_GUARD::QAR2(I),XR(f)
      • R(f);::R(F)+S(E),XR(f)
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