MESON Chess Problem Database

Problem Display
PID: 82128 (1b1B1rR1/3Q4/2N2p2/2p4p/1nN2k2/3p3P/4bK2/1qn1R2B w - - 0 1)

Ahues, Herbert Siegfried Oskar

Berliner Morgenpost, 1966

1b1B1rR1/3Q4/2N2p2/2p4p/1nN2k2/3p3P/4bK2/1qn1R2B

#2

9 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Re4#
    • 1...Bf1
      • 2.Re4#
    • 1...Bg4
      • 2.Re4#
    • 1...Ba7
      • 2.Bc7#
    • 1...Bc7
      • 2.Bxc7#
    • 1...f5
      • 2.Bg5#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qf5#
      • 1...Bg4
        • 2.Sg2#
      • 1...f5
        • 2.Bg5#
      • 1...d2!
    • 1.Qd4+?
      • 1...Kf5
        • 2.Qe4#
      • 1...cxd4!
    • 1.Qd6+?
      • 1...Kf5
        • 2.Se3#
        • 2.Se7#
      • 1...Bxd6!
  • Keys
    • 1.Se7!
      • threat
        • 2.Qf5#
      • 1...d2
        • 2.Qxd2#
      • 1...Bg4
        • 2.Re4#
      • 1...f5
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(c);OGATE::R1(A)
    • B(j);N_GUARD::B(H)
    • B(j);N_GUARD::B(H),XB(j)
    • P(i);OGATE::B(H)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(G)
      • Vars
        • B(c);::S(E)
        • P(i);OGATE::B(H)
      • Refutation
        • P(d);
    • Try
      • Q(G);CHECK
      • Vars
        • K(f);P-FLIGHT::QAB1(G)
      • Refutation
        • P(g);XQ(G)
    • Try
      • Q(G);CHECK
      • Refutation
        • B(j);XQ(G)
  • Actual
    • S(F);
    • Threat
      • QAR1(G)
    • Vars
      • P(d);OGATE::QAB(G),XP(d)
      • B(c);OGATE::R1(A)
      • P(i);::S(F)
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