MESON Chess Problem Database

Problem Display
PID: 157991 (2R4b/7b/8/K2p2Qr/2PkP1N1/1R1N3p/2n5/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schach, 1957

2R4b/7b/8/K2p2Qr/2PkP1N1/1R1N3p/2n5/8

#2

8 + 7

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qf4#
    • 1...Rh4
      • 2.Qxd5#
    • 1...Rh6
      • 2.Qxd5#
    • 1...Sa1
      • 2.Qe3#
    • 1...Se1
      • 2.Qe3#
    • 1...Sa3
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sb4
      • 2.Qe3#
  • Keys
    • 1.Qd2!
      • threat
        • 2.Sdf2#
      • 1...dxc4+
        • 2.Sc5#
      • 1...dxe4+
        • 2.Sde5#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Bxe4
        • 2.Qc3#
      • 1...Se1
        • 2.Qe3#
      • 1...Sb4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • K(c);OGATEB,P-FLIGHT,XP(D)::QAR1(G)
    • R(e);N_GUARD::QAR1(G),XP(d)
    • S(a);N_GUARD::QAB1(G)
    • S(a);N_GUARD::QAB1(G),XS(a)
  • Actual
    • Q(G);
    • Threat
      • QAR(G)+S(B)
    • Vars
      • P(d);CHECK,SBLOCK,XP(C)::QAR(G)+S(B)
      • P(d);CHECK,SBLOCK,XP(D)::QAR(G)+S(B)
      • K(c);OGATEB,P-FLIGHT,XP(D)::QAR1(G)
      • B(f);SBLOCK,XP(D)::QAB1(G)
      • S(a);N_GUARD::QAB1(G)
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