MESON Chess Problem Database

Problem Display
PID: 159994 (3R4/4p3/3r4/1Kn1N1N1/2PkpP2/3P4/1P5p/n1Q4b w - - 0 1)

Schonholzer, Andreas

4th HM., Nagler MT, 2007

3R4/4p3/3r4/1Kn1N1N1/2PkpP2/3P4/1P5p/n1Q4b

#2

9 + 8

15527 schachkunst (1997-2010) (Hoffmann) 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Rxd5#
    • 1...Sb3
      • 2.Se6#
    • 1...Sxd3
      • 2.Sc6#
      • 2.Se6#
    • 1...Sa4
      • 2.Se6#
    • 1...Sa6
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
    • 1...Sb7
      • 2.Se6#
    • 1...e3
      • 2.Qc3#
    • 1...e6
      • 2.Rxd6#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Qe3#
        • 2.Qc3#
      • 1...Kxd3
        • 2.Qd1#
      • 1...Sa4
        • 2.Qe3#
      • 1...e3
        • 2.Qxe3#
        • 2.Qc3#
      • 1...Sc2!
    • 1.dxe4?
      • threat
        • 2.Qc3#
      • 1...Sxe4
        • 2.Se6#
      • 1...Sd3
        • 2.Sc6#
      • 1...Sa4
        • 2.Qd2#
      • 1...Sc2!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Sc6#
      • 1...exd3
        • 2.Qf2#
      • 1...Sd7
        • 2.dxe4#
      • 1...e3
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(g);OGATE::R1(I),XR(g)
    • S(f);N_GUARD::S(H)
    • S(f);N_GUARD::S(H),XS(f)
    • P(e);SBLOCK::QAB1(A)
    • P(h);N_GUARD::R(I),XR(g)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);OGATEB,P-FLIGHT,XP(C)::QAR2(A)
        • S(f);::QAB1(A)
      • Refutation
        • S(a);
    • Try
      • P(C);XP(e)
      • Threat
        • QAB1(A)
      • Vars
        • S(f);N_GUARD,SBLOCK,XP(C)::S(H)
        • S(f);SBLOCK::S(G)
        • S(f);N_GUARD::QAR2(A)
      • Refutation
        • S(a);
  • Actual
    • Q(A);
    • Threat
      • S(G)
    • Vars
      • P(e);N_GUARD,P_SPINP(e),XP(C)::QAB(A)
      • S(f);N_GUARD,N_SPINR(g)::QAR(A)+P(C),XP(e)
      • P(e);SBLOCK::QAB1(A)
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