MESON Chess Problem Database

Problem Display
PID: 240212 (1nR5/b2pp3/6bR/1pNk4/1P1p2p1/1p4B1/4Q3/5K2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Problem-Forum, 2016

1nR5/b2pp3/6bR/1pNk4/1P1p2p1/1p4B1/4Q3/5K2

#2

7 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc5
      • 2.Rxc5#
    • 1...d6
      • 2.Qe6#
  • Tries
    • 1.Qf3+?
      • 1...Kc4
        • 2.Qxb3#
      • 1...Be4
        • 2.Qxb3#
      • 1...gxf3!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qe5#
      • 1...Bd3
        • 2.Sf4#
      • 1...Be4
        • 2.Sc7#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Sc6
        • 2.Sc7#
      • 1...d6
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(g);OGATE,XS(E)::R1(G),XB(g)
    • P(h);N_GUARD::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(B),XP(a)
        • B(f);P_SPINB(f)::QAB(B),XP(a)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • S(E);
    • Threat
      • QAR1(B)
    • Vars
      • B(f);P_PINQ(B)::S(E)
      • B(f);::S(E)
      • B(g);N_GUARD::R1(G),XB(g)
      • S(j);SBLOCK::S(E)
      • P(h);SBLOCK::S(E)
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