MESON Chess Problem Database

Problem Display
PID: 237489 (8/q1pP1KQ1/1BB1p2N/p5p1/RNp2kp1/2b4r/3Pbp1P/8 w - - 0 1)

Labai, Zoltan

Buletin Problemistic, 2019

8/q1pP1KQ1/1BB1p2N/p5p1/RNp2kp1/2b4r/3Pbp1P/8

#2

10 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.dxe3#
    • 1...Bf3
      • 2.Sd3#
    • 1...Bxd2
      • 2.Qd4#
      • 2.Qf6#
    • 1...Bxb4
      • 2.Qd4#
      • 2.Qf6#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Bf6
      • 2.Qxf6#
    • 1...e5
      • 2.Qf6#
  • Tries
    • 1.Bxc7+?
      • 1...Be5
        • 2.Bxe5#
        • 2.Qxe5#
        • 2.Qf6#
      • 1...e5
        • 2.Qf6#
      • 1...Qxc7!
  • Keys
    • 1.d4!
      • threat
        • 2.Qe5#
      • 1...Ke3
        • 2.Qxg5#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...cxd4 ep
        • 2.Sxd3#
      • 1...Re3
        • 2.Qf6#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(d);OGATE::P(A),XR(d)
    • B(a);N_GUARD,S_CUTR(d)::S(D)
    • B(c);N_GUARD::QAR2(J),XB(c)
    • P(j);S_CUTB(c)::QAR2(J)
  • Tries
    • Try
      • B(E);CHECK,XP(l)
      • Vars
        • P(j);P_SPINP(j)::QAR2(J)
      • Refutation
        • Q(k);P_PINP(H),XB(E)
  • Actual
    • P(A);
    • Threat
      • QAB1(J)
    • Vars
      • K(f);S_FLIGHT::QAB(J),XP(i)
      • B(c);OGATE,XP(A)::QAR2(J),XB(c)
      • P(e);EP,N_GUARD,XP(A)::R(C)+S(D),DCHECK,XP(e)
      • R(d);SBLOCK::QAR2(J)
      • P(j);::QAB1(J),XP(j)
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