MESON Chess Problem Database

Problem Display
PID: 145620 (3r3n/N2p4/8/2pk1p2/7Q/K4N2/4R2B/5B2 w - - 0 1)

Bruch, Wieland

1st Prize, Problem-Forum, 2007

3r3n/N2p4/8/2pk1p2/7Q/K4N2/4R2B/5B2

#2

7 + 6

23 Die Schwalbe 2011
17267 FIDE Album (2007-2009) 2015

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qd4#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Bg2#
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
      • 1...Re8
        • 2.Qc4#
      • 1...Rg8
        • 2.Qc4#
      • 1...f4!
    • 1.Re1?
      • threat
        • 2.Bc4#
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
        • 2.Qd4#
      • 1...f4!
    • 1.Re3?
      • threat
        • 2.Bc4#
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
        • 2.Qd4#
      • 1...f4!
    • 1.Re7?
      • threat
        • 2.Bc4#
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
        • 2.Qd4#
      • 1...f4!
    • 1.Re8?
      • threat
        • 2.Bc4#
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
        • 2.Qd4#
      • 1...f4!
    • 1.Qf6?
      • threat
        • 2.Re5#
      • 1...Kc4
        • 2.Rd2#
      • 1...Sg6
        • 2.Qf7#
      • 1...Sf7
        • 2.Qxf7#
      • 1...d6
        • 2.Qe6#
      • 1...Re8!
    • 1.Qe7?
      • threat
        • 2.Rd2#
        • 2.Re5#
      • 1...Sg6
        • 2.Rd2#
        • 2.Qf7#
      • 1...Sf7
        • 2.Rd2#
        • 2.Qxf7#
      • 1...d6
        • 2.Rd2#
        • 2.Qe6#
      • 1...Kc4!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Rd2#
      • 1...Kc4
        • 2.Re5#
      • 1...c4
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::QAR1(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAB1(F),XP(a)
        • R(e);::QAB1(F)
      • Refutation
        • P(c);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);
    • Try
      • Q(F);
      • Threat
        • R1(B)
      • Vars
        • K(b);S_FLIGHT::B(A)+R(B)
        • S(f);N_GUARD::QAB(F)
        • S(f);N_GUARD::QAB(F),XS(f)
        • P(d);N_GUARD::QAB1(F)
      • Refutation
        • R(e);
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • R(B)
    • Vars
      • K(b);S_FLIGHT::B(A)+R(B)
      • P(a);OGATEB,SBLOCK::QAR(F)
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