MESON Chess Problem Database

Problem Display
PID: 241598 (2R1R3/1p6/1p6/qpPpNPQ1/3kN3/p7/5Pn1/1B4bK w - - 0 1)

Basisty, Mark Borisovich

Vasilenko, Anatoly Grigorovich

Zaldo MT (Problemas), 2019

2R1R3/1p6/1p6/qpPpNPQ1/3kN3/p7/5Pn1/1B4bK

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qd2
      • 2.Qxd2#
    • 1...Qa4
      • 2.Qd2#
    • 1...Qa6
      • 2.Qd2#
    • 1...Qa7
      • 2.Qd2#
    • 1...Qa8
      • 2.Qd2#
    • 1...Se1
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sh4
      • 2.Qe3#
    • 1...b4
      • 2.Qd2#
  • Tries
    • 1.Qg3?
      • threat
        • 2.Qd3#
      • 1...dxe4
        • 2.Red8#
      • 1...Qc3
        • 2.Qxc3#
      • 1...Se1
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sf4
        • 2.Qe3#
      • 1...Qd2!
    • 1.cxb6?
      • threat
        • 2.Sf3#
      • 1...dxe4
        • 2.Qd8#
      • 1...Se1
        • 2.Qe3#
      • 1...Sh4
        • 2.Qe3#
      • 1...Qc3!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Sf3#
      • 1...dxe4
        • 2.Rcd8#
      • 1...Qc3
        • 2.Qxc3#
      • 1...Se1
        • 2.Qe3#
      • 1...Sh4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(e);N_GUARD::QAR2(H),XQ(e)
    • Q(e);N_GUARD::QAR2(H)
    • S(b);N_GUARD::QAB1(H)
    • S(b);N_GUARD::QAB1(H),XS(b)
    • P(f);S_CUTQ(e)::QAR2(H)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • P(g);OGATEB,XS(D)::R(J)
        • Q(e);N_GUARD::QAB1(H),XQ(e)
        • S(b);N_GUARD::QAB1(H)
        • S(b);N_GUARD::QAB1(H),XS(b)
      • Refutation
        • Q(e);
    • Try
      • P(E);XP(h)
      • Threat
        • S(F)
      • Vars
        • P(g);OGATEB,XS(D)::QAR(H)
        • S(b);N_GUARD::QAB1(H)
      • Refutation
        • Q(e);
  • Actual
    • Q(H);
    • Threat
      • S(F)
    • Vars
      • P(g);OGATEB,XS(D)::R(I)
      • Q(e);N_GUARD::QAB1(H),XQ(e)
      • S(b);N_GUARD::QAB1(H)
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