MESON Chess Problem Database

Problem Display
PID: 237458 (3N1BR1/4P3/3PrkPp/q1R1br2/1p2pp1P/2p5/4Q3/1B2K3 w - - 0 1)

Labai, Zoltan

Sp. HM., Pat a Mat, 2010

3N1BR1/4P3/3PrkPp/q1R1br2/1p2pp1P/2p5/4Q3/1B2K3

#2

11 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.e8S#
    • 1...Rxe7
      • 2.Bxe7#
  • Tries
    • 1.Qxe4?
      • threat
        • 2.Qxf5#
      • 1...Bxd6
        • 2.Qxe6#
      • 1...Rg5
        • 2.Bg7#
      • 1...Rh5
        • 2.Bg7#
      • 1...Bd4
        • 2.Qxe6#
      • 1...c2!
    • 1.e8Q?
      • threat
        • 2.Bg7#
        • 2.Qf7#
        • 2.Qxe6#
      • 1...Qxd8
        • 2.Bg7#
        • 2.Qf7#
      • 1...Rxd6
        • 2.Be7#
        • 2.Bg7#
        • 2.Qf7#
        • 2.Qe7#
      • 1...Rg5
        • 2.Qf7#
        • 2.Qxe6#
      • 1...Rh5
        • 2.Qf7#
        • 2.Qxe6#
      • 1...Qc7
        • 2.Qxe6#
      • 1...Qa2
        • 2.Bg7#
        • 2.Qf7#
      • 1...Qa7
        • 2.Qxe6#
      • 1...Re7
        • 2.Bxe7#
        • 2.Qxe7#
      • 1...Rxe8!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Bg7#
      • 1...Rxd6
        • 2.e8S#
      • 1...Rxe7
        • 2.Bxe7#
      • 1...Bxd6
        • 2.Qxf5#
      • 1...Rg5
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(h);N_GUARD,XP(F)::P=S
    • R(h);OGATE,XP(H)::B(J),XR(h)
  • Tries
    • Try
      • Q(C);XP(c)
      • Threat
        • QAR1(C),XR(g)
      • Vars
        • B(f);OGATE,P_PINQ(C),XP(F)::QAR1(C),XR(h)
        • R(g);::B(J)
        • B(f);OGATE,P_PINQ(C)::QAR1(C),XR(h)
      • Refutation
        • P(a);
    • Try
      • P(H);
      • Threat
        • DUALS(3)
      • Vars
        • Q(e);::QAR1(H),XR(h)
      • Refutation
        • R(h);XQ(H)
  • Actual
    • Q(C);
    • Threat
      • B(J)
    • Vars
      • R(h);N_GUARD,XP(F)::P=S
      • R(h);OGATE,XP(H)::B(J),XR(h)
      • B(f);XP(F)::QAR1(C),XR(g)
      • R(g);OGATE::QAR1(C),XR(h)
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