MESON Chess Problem Database

Problem Display
PID: 274593 (Bnr1b3/2p2r2/3N3b/3p1p1n/3k4/2pN1K2/4P3/Q2R4 w - - 0 1)

Angeli, Herbert

Die Tat, 1953

(First published on Sat Feb 7 1953)

Bnr1b3/2p2r2/3N3b/3p1p1n/3k4/2pN1K2/4P3/Q2R4

#2

7 + 11

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Rd7
      • 2.Qa4#
    • 1...Bg7
      • 2.e3#
    • 1...Bf8
      • 2.e3#
    • 1...Ba4
      • 2.Qxa4#
    • 1...Bc6
      • 2.Qa7#
    • 1...Sf4
      • 2.e3#
    • 1...Sd7
      • 2.Qa4#
    • 1...c6
      • 2.Qa4#
  • Tries
    • 1.Sb5+?
      • 1...Kc4
        • 2.Qa4#
      • 1...Bxb5!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qxd5#
      • 1...c2
        • 2.Qa1#
        • 2.Qb2#
      • 1...Bc6
        • 2.Qa7#
      • 1...Sf4
        • 2.e3#
      • 1...Sf6
        • 2.Sxf5#
      • 1...Sc6
        • 2.Sb5#
      • 1...c6
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(h);S_CUTB(k)::QAR(A)
    • B(f);N_GUARD::P(C)
    • B(k);N_GUARD::QAR(A),XB(k)
    • B(k);S_CUTP(g)::QAB(A)
    • S(e);S_CUTB(f)::P(C)
    • S(i);S_CUTB(k)::QAR(A)
    • P(g);S_CUTB(k)::QAR(A)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR2(A)
      • Refutation
        • B(k);XS(F)
  • Actual
    • Q(A);N_PINP(a)
    • Threat
      • QAR1(A),XP(c)
    • Vars
      • B(k);S_CUTP(g)::QAB(A)
      • S(e);S_CUTB(f)::P(C)
      • S(e);S_CUTR(h)::S(F),XP(d)
      • S(i);S_CUTB(k)::S(F)
      • P(g);S_CUTB(k)::QAR(A)
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