MESON Chess Problem Database

Problem Display
PID: 139434 (8/3p1R2/1Kpp1R2/1n2k1pp/2P4p/1P2Np2/1P6/1B1Q4 w - - 0 1)

Janevski, Zivko

Troll, 2010

8/3p1R2/1Kpp1R2/1n2k1pp/2P4p/1P2Np2/1P6/1B1Q4

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sa3
      • 2.Qxd6#
    • 1...Sc3
      • 2.Qxd6#
    • 1...Sa7
      • 2.Qxd6#
    • 1...Sc7
      • 2.Qxd6#
    • 1...c5
      • 2.Qd5#
  • Tries
    • 1.Rxd6?
      • threat
        • 2.Rf5#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sxd6!
    • 1.Qc2?
      • threat
        • 2.Qe4#
      • 1...Kd4
        • 2.Qe4#
      • 1...Sc3
        • 2.Qxc3#
      • 1...d5!
    • 1.Qe1?
      • threat
        • 2.Sc2#
      • 1...Kd4
        • 2.Sf5#
      • 1...Sd4
        • 2.Sg4#
      • 1...Sc3
        • 2.Qxc3#
      • 1...f2!
    • 1.Qd3?
      • threat
        • 2.Qe4#
      • 1...Sc3
        • 2.Qxc3#
        • 2.Qxd6#
      • 1...d5!
    • 1.cxb5?
      • threat
        • 2.Sc4#
        • 2.Qxd6#
      • 1...cxb5
        • 2.Qd5#
        • 2.Qxd6#
      • 1...d5!
  • Keys
    • 1.Sc2!
      • threat
        • 2.Qe1#
      • 1...Ke4
        • 2.Re7#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sc3
        • 2.Qd4#
      • 1...f2
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • S(c);N_GUARD::QAB1(B),XP(h)
    • P(g);N_GUARD::QAR1(B)
  • Tries
    • Try
      • R(H);XP(h)
      • Threat
        • R1(I)
      • Vars
        • S(c);N_GUARD::QAB1(B),XS(c)
      • Refutation
        • S(c);XR(H)
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(d);S_FLIGHT::QAR1(B)
        • S(c);N_GUARD::QAB(B),XS(c)
      • Refutation
        • P(h);
    • Try
      • Q(B);
      • Threat
        • QAR(B)+S(E)
      • Vars
        • K(d);S_FLIGHT::S(E)
        • S(c);SBLOCK::QAR(B)+S(E),DCHECK
        • S(c);N_GUARD::QAB(B),XS(c)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Refutation
        • P(h);
    • Try
      • P(F);XS(c)
      • Threat
        • DUALS(2)
      • Refutation
        • P(h);
  • Actual
    • S(E);
    • Threat
      • QAR(B)
    • Vars
      • K(d);P-FLIGHT::R(I)
      • S(c);N_GUARD::QAB1(B),XS(c)
      • S(c);N_GUARD::QAB1(B)
      • P(a);N_GUARD::QAR(B)
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