MESON Chess Problem Database

Problem Display
PID: 217445 (2Q5/4p3/3q4/1n1N2p1/4k3/4pNP1/B1P3P1/6K1 w - - 0 1)

Kuijers, LA

Deutsche Schachzeitung, 1900

2Q5/4p3/3q4/1n1N2p1/4k3/4pNP1/B1P3P1/6K1

#2

8 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Qg4#
      • 2.Qe6#
    • 1...Qb4
      • 2.Qg4#
      • 2.Qe6#
    • 1...Qc5
      • 2.Qg4#
      • 2.Qe6#
    • 1...Qxd5
      • 2.Qg4#
    • 1...Qa6
      • 2.Qg4#
    • 1...Qb6
      • 2.Qg4#
    • 1...Qc6
      • 2.Qg4#
    • 1...Qe6
      • 2.Qxe6#
    • 1...Qg6
      • 2.Qg4#
    • 1...Qh6
      • 2.Qg4#
    • 1...Qd8
      • 2.Qg4#
      • 2.Qe6#
    • 1...Sa3
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Sd4
      • 2.Sc3#
    • 1...Sa7
      • 2.Sc3#
    • 1...Sc7
      • 2.Sc3#
    • 1...e5
      • 2.Qg4#
  • Tries
    • 1.Qe6+?
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qxe6!
    • 1.Qc4+?
      • 1...Sd4
        • 2.Qd3#
      • 1...Kf5!
  • Keys
    • 1.Bb1!
      • threat
        • 2.c4#
      • 1...Kxd5
        • 2.c4#
      • 1...Qxd5
        • 2.Qg4#
      • 1...Qa3
        • 2.Qe6#
      • 1...Qb4
        • 2.Qe6#
      • 1...Sa3
        • 2.Sc3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Sd4
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 9
  • Sets
    • Q(e);N_GUARD,XS(G)::QAR2(H)
    • Q(e);N_GUARD::QAR2(H)
    • Q(e);N_GUARD::QAR2(H),XQ(e)
    • S(c);N_GUARD::S(G)
    • S(c);N_GUARD::S(G),XS(c)
    • P(f);S_CUTQ(e)::QAR2(H)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • Q(e);N_GUARD,P_SPINQ(e)::QAR1(H),XQ(e)
      • Refutation
        • Q(e);XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • S(c);P_SPINS(c)::QAB1(H)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(B);
    • Threat
      • B(B)+P(C)
    • Vars
      • K(b);S_FLIGHT,XS(G)::P(C)
      • Q(e);N_GUARD,SBLOCK,XS(G)::QAR2(H)
      • Q(e);N_GUARD::QAR2(H)
      • S(c);N_GUARD::S(G)
      • S(c);N_GUARD::S(G),XS(c)
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Developed and maintained by Brian Stephenson.
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