MESON Chess Problem Database

Problem Display
PID: 236516 (8/1Q3p2/4pB1p/1B2PkpK/b1rp1NRn/8/2p2b2/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Rochade Europa, 2011

8/1Q3p2/4pB1p/1B2PkpK/b1rp1NRn/8/2p2b2/8

#2

7 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Bd3#
    • 1...Rc5
      • 2.Bd3#
    • 1...Rc6
      • 2.Bd3#
    • 1...Rc7
      • 2.Bd3#
    • 1...Rc8
      • 2.Bd3#
  • Tries
    • 1.Se2?
      • threat
        • 2.Qe4#
      • 1...Rc6
        • 2.Bd3#
      • 1...d3!
    • 1.Sg2?
      • threat
        • 2.Qe4#
      • 1...Rc6
        • 2.Bd3#
      • 1...d3!
    • 1.Sh3?
      • threat
        • 2.Qe4#
      • 1...Rc6
        • 2.Bd3#
      • 1...d3!
    • 1.Sd5?
      • threat
        • 2.Se7#
      • 1...exd5
        • 2.Qd7#
      • 1...Rc7
        • 2.Bd3#
      • 1...Sg6!
    • 1.Sg6?
      • threat
        • 2.Se7#
        • 2.Qe4#
      • 1...Sxg6
        • 2.Qe4#
      • 1...d3
        • 2.Se7#
      • 1...Rc6
        • 2.Se7#
        • 2.Bd3#
      • 1...Rc7
        • 2.Bd3#
        • 2.Qe4#
      • 1...fxg6+!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Sg7#
      • 1...Kxe6
        • 2.Qd7#
      • 1...fxe6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(d);OGATE::B(C)
  • Tries
    • Try
      • S(A);
      • Threat
        • QAB1(G)
      • Vars
        • R(d);OGATE::B(C)
      • Refutation
        • P(e);
    • Try
      • S(A);
      • Threat
        • QAB1(G)
      • Vars
        • R(d);OGATE::B(C)
      • Refutation
        • P(e);
    • Try
      • S(A);
      • Threat
        • QAB1(G)
      • Vars
        • R(d);OGATE::B(C)
      • Refutation
        • P(e);
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • P(i);OGATEB,XS(A)::QAB(G)
        • R(d);OGATE::B(C)
      • Refutation
        • S(f);
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);XS(A)::QAB1(G)
        • P(e);::S(A)
      • Refutation
        • P(k);CHECK,XS(A)
  • Actual
    • S(A);XP(i)
    • Threat
      • S(A)
    • Vars
      • K(g);OGATEB,S_FLIGHT,XS(A)::QAB1(G)
      • P(k);SBLOCK,XS(A)::QAB1(G)
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