MESON Chess Problem Database

Problem Display
PID: 180554 (3Q4/2K2nBp/2p1p3/2p1p3/2P1k2P/1R2P2N/N4R2/1bb3n1 w - - 0 1)

Romanovskis, Vladimirs

Sachmatija, 2016

3Q4/2K2nBp/2p1p3/2p1p3/2P1k2P/1R2P2N/N4R2/1bb3n1

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bxa2
      • 2.Qd3#
    • 1...Bd3
      • 2.Qxd3#
    • 1...Bxe3
      • 2.Sc3#
    • 1...Sg5
      • 2.Sxg5#
    • 1...Sd6
      • 2.Sg5#
    • 1...Sh6
      • 2.Sg5#
    • 1...Sxd8
      • 2.Sg5#
    • 1...Sh8
      • 2.Sg5#
  • Tries
    • 1.Rf6?
      • threat
        • 2.Sf2#
      • 1...Bxe3
        • 2.Sc3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sxh3!
    • 1.Rxf7?
      • threat
        • 2.Sf2#
        • 2.Sg5#
      • 1...Bxe3
        • 2.Sc3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sf3
        • 2.Sf2#
      • 1...h6
        • 2.Sf2#
      • 1...Sxh3!
    • 1.Qd1?
      • threat
        • 2.Qg4#
      • 1...Bxe3
        • 2.Sc3#
      • 1...Sxh3
        • 2.Qf3#
        • 2.Qh1#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Se2
        • 2.Qh1#
      • 1...Sh6
        • 2.Sg5#
      • 1...h5!
    • 1.Qd4+?
      • 1...exd4
        • 2.Rf4#
      • 1...cxd4!
    • 1.Qd6?
      • threat
        • 2.Qxc6#
      • 1...Bxe3
        • 2.Sc3#
      • 1...Sxd6
        • 2.Sg5#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sd8
        • 2.Sg5#
        • 2.Qxe5#
      • 1...Sf3!
    • 1.Qd7?
      • threat
        • 2.Qxc6#
      • 1...Bxe3
        • 2.Sc3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sd8
        • 2.Sg5#
      • 1...Sf3!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qg4#
      • 1...Bxe3
        • 2.Qxe3#
      • 1...Sxh3
        • 2.Qg2#
      • 1...Sxg5
        • 2.Sxg5#
      • 1...Bd3
        • 2.Sc3#
      • 1...Se2
        • 2.Qg2#
      • 1...Sh6
        • 2.Qxe5#
      • 1...h5
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD,XS(A)::QAB1(J)
    • B(a);N_GUARD::QAB1(J),XB(a)
    • B(b);SBLOCK,XP(D)::S(A)
    • S(i);N_GUARD::S(E),XS(i)
    • S(i);N_GUARD::S(E)
    • S(i);N_GUARD,XQ(J)::S(E)
  • Tries
    • Try
      • R(B);
      • Threat
        • S(E)
      • Vars
        • B(b);SBLOCK,XP(D)::S(A)
        • B(a);N_GUARD::QAB1(J),XB(a)
      • Refutation
        • S(c);XS(E)
    • Try
      • R(B);XS(i)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);SBLOCK,XP(D)::S(A)
        • B(a);N_GUARD::QAB1(J),XB(a)
        • S(c);::S(E)
        • P(j);::S(E)
      • Refutation
        • S(c);XS(E)
    • Try
      • Q(J);
      • Threat
        • QAR2(J)
      • Vars
        • B(b);SBLOCK,XP(D)::S(A)
        • B(a);N_GUARD::QAB1(J),XB(a)
        • S(c);N_GUARD::QAB1(J),XS(c)
        • S(c);OGATE::QAB(J)
        • S(i);N_GUARD::S(E)
      • Refutation
        • P(j);
    • Try
      • Q(J);CHECK
      • Vars
        • P(f);XQ(J)::R1(B)
      • Refutation
        • P(e);XQ(J)
    • Try
      • Q(J);
      • Threat
        • QAB(J),XP(g)
      • Vars
        • B(b);SBLOCK,XP(D)::S(A)
        • S(i);N_GUARD,XQ(J)::S(E)
        • B(a);N_GUARD::QAB1(J),XB(a)
      • Refutation
        • S(c);
    • Try
      • Q(J);
      • Threat
        • QAB(J),XP(g)
      • Vars
        • B(b);SBLOCK,XP(D)::S(A)
        • B(a);N_GUARD::QAB1(J),XB(a)
        • S(i);N_GUARD::S(E)
      • Refutation
        • S(c);
  • Actual
    • Q(J);
    • Threat
      • QAR2(J)
    • Vars
      • B(b);OGATE,XP(D)::QAR1(J),XB(b)
      • S(c);N_GUARD,XS(E)::QAB(J)
      • S(i);XQ(J)::S(E),XS(i)
      • B(a);SBLOCK::S(A)
      • S(c);N_GUARD::QAB(J)
      • S(i);N_GUARD::QAR1(J),XP(f)
      • P(j);N_GUARD::QAB(J)
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