MESON Chess Problem Database

Problem Display
PID: 240189 (BK6/2p5/1p4n1/1N1R4/1p2k1b1/P2Np3/4rbP1/5Q2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Problem-Forum, 2005

BK6/2p5/1p4n1/1N1R4/1p2k1b1/P2Np3/4rbP1/5Q2

#2

8 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Re5#
    • 1...Ra2
      • 2.Re5#
    • 1...Rb2
      • 2.Re5#
    • 1...Rc2
      • 2.Re5#
    • 1...Rd2
      • 2.Re5#
    • 1...Be1
      • 2.Rd4#
    • 1...Bg1
      • 2.Rd4#
    • 1...Bg3
      • 2.Rd4#
    • 1...Bh4
      • 2.Rd4#
    • 1...Bf5
      • 2.Rd4#
    • 1...bxa3
      • 2.Sc3#
    • 1...b3
      • 2.Sc3#
    • 1...c5
      • 2.Sd6#
  • Tries
    • 1.Qa1?
      • threat
        • 2.Qd4#
      • 1...Se5
        • 2.Qxe5#
      • 1...c5
        • 2.Sd6#
      • 1...Rb2!
    • 1.axb4?
      • threat
        • 2.Sc3#
      • 1...Rc2
        • 2.Re5#
      • 1...Be1
        • 2.Rd4#
      • 1...Se5!
  • Keys
    • 1.Kxc7!
      • threat
        • 2.Sd6#
      • 1...Rc2+
        • 2.Rc5#
      • 1...Bg3+
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • R(a);::B(G)+R(F),DCHECK
    • B(b);::B(G)+R(F),DCHECK
    • B(f);SBLOCK::B(G)+R(F),DCHECK
    • P(d);N_GUARD,XP(C)::S(E)
    • P(d);N_GUARD::S(E)
    • P(i);N_GUARD::S(E)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • S(h);N_GUARD::QAR1(A),XS(h)
        • P(i);N_GUARD::S(E)
      • Refutation
        • R(a);
    • Try
      • P(C);XP(d)
      • Threat
        • S(E)
      • Vars
        • R(a);::B(G)+R(F),DCHECK
        • B(b);::B(G)+R(F),DCHECK
      • Refutation
        • S(h);
  • Actual
    • K(H);S_FLIGHT,XP(i)
    • Threat
      • S(E)
    • Vars
      • R(a);CHECK::B(G)+R(F)
      • B(b);CHECK::B(G)+R(F)
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