MESON Chess Problem Database

Problem Display
PID: 209116 (2K5/Q1b5/3pp2N/4kPP1/2PR1p2/1N1PqR2/2n2n2/2B5 w - - 0 1)

Basisty, Mark Borisovich

Vasilenko, Anatoly Grigorovich

Sachova skladba, 2015

2K5/Q1b5/3pp2N/4kPP1/2PR1p2/1N1PqR2/2n2n2/2B5

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Bxf4#
    • 1...Qe2
      • 2.Bxf4#
    • 1...Qxd3
      • 2.Bxf4#
    • 1...Ba5
      • 2.Qg7#
    • 1...Bb6
      • 2.Qg7#
    • 1...Bb8
      • 2.Qg7#
    • 1...d5
      • 2.Qxc7#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Sd7#
      • 1...Kxd4
        • 2.Bb2#
      • 1...dxc5
        • 2.Qxc5#
      • 1...exf5
        • 2.Rd5#
      • 1...Bb6
        • 2.Qg7#
      • 1...d5!
    • 1.Rdxf4?
      • threat
        • 2.Sf7#
      • 1...Qxf4
        • 2.Bxf4#
      • 1...exf5!
    • 1.Qc5+?
      • 1...d5
        • 2.Qxc7#
      • 1...dxc5!
    • 1.Qa5+?
      • 1...d5
        • 2.Qxc7#
      • 1...Bxa5!
    • 1.Qxc7?
      • threat
        • 2.Qxd6#
        • 2.Qg7#
      • 1...Qxd4
        • 2.Qg7#
      • 1...Sxd4
        • 2.Qg7#
      • 1...exf5
        • 2.Qxd6#
        • 2.Qe7#
      • 1...Sg4
        • 2.Qxd6#
      • 1...Se4!
  • Keys
    • 1.Rxd6!
      • threat
        • 2.Rxe6#
      • 1...Kxd6
        • 2.Qxc7#
      • 1...Bxd6
        • 2.Qg7#
      • 1...exf5
        • 2.Sf7#
      • 1...Qb6
        • 2.Bxf4#
      • 1...Sd4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • Q(c);OGATE::B(A),XP(d)
    • Q(c);OGATE,XP(C)::B(A),XP(d)
    • B(h);OGATE::QAB(J)
    • P(f);OGATEB::QAB(J),XB(h)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • K(e);OGATEB,S_FLIGHT,XR(F)::B(A)
        • P(f);OGATE,XS(B)::QAR2(J),XP(f)
        • P(g);N_GUARD,XP(G)::R1(F)
        • B(h);OGATE::QAB(J)
      • Refutation
        • P(f);
    • Try
      • R(F);XP(d)
      • Threat
        • S(I)
      • Vars
        • Q(c);OGATE,XR(F)::B(A),XQ(c)
      • Refutation
        • P(g);XP(G)
    • Try
      • Q(J);CHECK
      • Vars
        • P(f);OGATEB,P_SPINP(f)::QAB(J),XB(h)
      • Refutation
        • P(f);XQ(J)
    • Try
      • Q(J);CHECK
      • Vars
        • P(f);OGATEB,P_SPINP(f)::QAB(J),XB(h)
      • Refutation
        • B(h);XQ(J)
    • Try
      • Q(J);P_PINP(f),XB(h)
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);XR(F)::QAB(J)
        • S(a);XR(F)::QAB(J)
        • S(b);::QAB1(J),XP(f)
      • Refutation
        • S(b);
  • Actual
    • R(F);XP(f)
    • Threat
      • R1(F),XP(g)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(F)::QAB1(J),XB(h)
      • B(h);OGATE,SBLOCK,XR(F)::QAB(J)
      • P(g);SBLOCK,XP(G)::S(I)
      • Q(c);OGATE::B(A),XP(d)
      • S(a);S_CUTQ(c)::QAR2(J)
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