MESON Chess Problem Database

Problem Display
PID: 163315 (7k/r1p4P/2P5/p2P1N1Q/Kp2B3/p1q2P2/8/B7 w - - 0 1)

Bottger, Horst

stern, 1995

(First published on Thu Jul 6 1995)

7k/r1p4P/2P5/p2P1N1Q/Kp2B3/p1q2P2/8/B7

#2

9 + 7

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Bxd4#
    • 1...Qe5
      • 2.Bxe5#
    • 1...Qf6
      • 2.Bxf6#
    • 1...Qg7
      • 2.Bxg7#
    • 1...b3
      • 2.Bxc3#
  • Tries
    • 1.Qg6?
      • threat
        • 2.Qg8#
      • 1...Qg7
        • 2.Bxg7#
        • 2.Qxg7#
      • 1...Ra8!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qe5#
      • 1...Qc2+
        • 2.Sxc2#
      • 1...Qb3+
        • 2.Sxb3#
      • 1...Qxc6+
        • 2.Sxc6#
      • 1...Kg7
        • 2.h8Q#
      • 1...Qxd4
        • 2.Bxd4#
      • 1...Qxf3
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • Q(b);OGATE::B(A),XQ(b)
    • P(c);N_GUARD::B(A),XQ(b)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Refutation
        • R(e);
  • Actual
    • S(F);N_PINQ(b)
    • Threat
      • QAB(G)
    • Vars
      • Q(b);CHECK::B(A)+S(F),XQ(b)
      • Q(b);CHECK,XP(H)::B(A)+S(F),XQ(b)
      • K(g);OGATE,S_FLIGHT::P=Q
      • Q(b);OGATE,P_SPINQ(b),XS(F)::B(A),XQ(b)
      • Q(b);XP(B)::B(A)+S(F),XQ(b)
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