MESON Chess Problem Database

Problem Display
PID: 77175 (Q7/2pN1R1b/3pp3/1NprP1p1/4k1P1/4p3/3pB3/3K1Rb1 w - - 0 1)

Degenkolbe, Mirko

Jordan, Gunter

3rd Prize, Freie Presse, 1999

Q7/2pN1R1b/3pp3/1NprP1p1/4k1P1/4p3/3pB3/3K1Rb1

#2

9 + 11

14503 Problemschach-Jahrbuch (1999) 2000
15391 Problemschach-Jahrbuch (2000) 2001
23 Die Schwalbe 2007

SOLUTION

  • SOUND
  • Sets
    • 1...dxe5
      • 2.Sxc5#
      • 2.Sf6#
  • Tries
    • 1.Sxd6+?
      • 1...Kd4
        • 2.Qa1#
      • 1...cxd6!
    • 1.Sxc5+?
      • 1...Kxe5
        • 2.Qh8#
      • 1...dxc5!
    • 1.Qa1?
      • threat
        • 2.Sf6#
      • 1...Rd4
        • 2.Sc3#
      • 1...Bf2!
    • 1.Qa4+?
      • 1...Rd4
        • 2.Sc3#
      • 1...c4!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qxh7#
      • 1...Rxe5
        • 2.Sf6#
      • 1...Rd3
        • 2.Bf3#
      • 1...Rd4
        • 2.Sc3#
      • 1...Bf5
        • 2.Qh1#
      • 1...Bg6
        • 2.Qh1#
      • 1...Bg8
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK,XP(h)
      • Vars
        • K(d);N_SPINR(f),P-FLIGHT::QAB(I)
      • Refutation
        • P(j);XS(E)
    • Try
      • S(G);CHECK,XP(e)
      • Vars
        • K(d);N_SPINR(f),P-FLIGHT,XP(F)::QAB(I)
      • Refutation
        • P(h);XS(G)
    • Try
      • Q(I);N_PINR(f)
      • Threat
        • S(G)
      • Vars
        • R(f);SBLOCK::S(E)
      • Refutation
        • B(a);
    • Try
      • Q(I);CHECK,N_PINR(f)
      • Vars
        • R(f);P_SPINR(f)::S(E)
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • Q(I);N_PINR(f)
    • Threat
      • QAB(I),XB(k)
    • Vars
      • R(f);SBLOCK,XP(F)::S(G)
      • R(f);SBLOCK::B(C)
      • R(f);SBLOCK::S(E)
      • B(k);OGATE::QAB(I)
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