MESON Chess Problem Database

Problem Display
PID: 169152 (1Q2K3/8/p5R1/p4k1B/rR2p3/8/1bNPP3/2qn4 w - - 0 1)

Novitski, Petr Adrinovich

4th Prize, SuperProblem 164. TT, 2016

1Q2K3/8/p5R1/p4k1B/rR2p3/8/1bNPP3/2qn4

#2

8 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Sd4#
    • 1...Bd4
      • 2.Sxd4#
    • 1...Sf2
      • 2.Se3#
    • 1...Sc3
      • 2.Se3#
      • 2.Sd4#
    • 1...Se3
      • 2.Sxe3#
    • 1...e3
      • 2.Qf4#
  • Tries
    • 1.Kf7?
      • threat
        • 2.Bg4#
      • 1...Sf2
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Be5!
    • 1.Rb5+?
      • 1...Be5
        • 2.Qxe5#
      • 1...axb5!
    • 1.Qd6?
      • threat
        • 2.Bg4#
      • 1...Bf6
        • 2.Qxf6#
      • 1...Sf2
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Be5!
    • 1.Qd8?
      • threat
        • 2.Qg5#
      • 1...Kf4
        • 2.Qg5#
      • 1...Ke5
        • 2.Qg5#
      • 1...Bf6
        • 2.Qxf6#
      • 1...Qxd2!
    • 1.e3?
      • threat
        • 2.Qf4#
      • 1...Sxe3
        • 2.Sxe3#
      • 1...Be5
        • 2.Qc8#
      • 1...Bf6!
  • Keys
    • 1.d4!
      • threat
        • 2.Qe5#
      • 1...Bxd4
        • 2.Sxd4#
      • 1...exd4 ep
        • 2.e4#
      • 1...Qf4
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(c);N_GUARD::S(A)
    • B(c);N_GUARD::S(A),XB(c)
    • S(b);N_GUARD::S(A)
    • S(b);N_GUARD::S(A),XS(b)
    • P(e);::QAR1(G)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Threat
        • B(E)
      • Vars
        • S(b);N_GUARD::S(A)
        • S(b);N_GUARD::S(A),XS(b)
      • Refutation
        • B(c);
    • Try
      • R(D);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAR1(G),XB(c)
      • Refutation
        • P(h);XR(D)
    • Try
      • Q(G);
      • Threat
        • B(E)
      • Vars
        • B(c);N_GUARD::QAR1(G),XB(c)
        • S(b);N_GUARD::S(A)
        • S(b);N_GUARD::S(A),XS(b)
      • Refutation
        • B(c);
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • K(g);P-FLIGHT,P_SPINP(e)::QAB1(G)
        • K(g);P-FLIGHT::QAR2(G)
        • B(c);N_GUARD::QAR1(G),XB(c)
      • Refutation
        • Q(a);XP(B)
    • Try
      • P(C);
      • Threat
        • QAR1(G)
      • Vars
        • S(b);XP(C)::S(A),XS(b)
        • B(c);SBLOCK::QAB(G)
      • Refutation
        • B(c);
  • Actual
    • P(B);
    • Threat
      • QAR1(G)
    • Vars
      • B(c);XP(B)::S(A),XB(c)
      • P(e);EP,OGATE,XP(B)::P(C)
      • Q(a);SBLOCK::QAB(G)
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