MESON Chess Problem Database

Problem Display
PID: 239970 (1r6/1P1p4/Q2pP3/P1pkpBRN/1bpP1RnK/1P4pp/b3N3/6q1 w - - 0 1)

Labai, Zoltan

Sinfonie Scacchistiche, 2014

1r6/1P1p4/Q2pP3/P1pkpBRN/1bpP1RnK/1P4pp/b3N3/6q1

#2

12 + 13

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb7
      • 2.Qxb7#
    • 1...Ra8
      • 2.bxa8Q#
      • 2.bxa8B#
    • 1...Bb1
      • 2.bxc4#
    • 1...Ba3
      • 2.Sc3#
    • 1...Bc3
      • 2.Sxc3#
    • 1...Sf2
      • 2.Sf6#
    • 1...Sh2
      • 2.Sf6#
    • 1...Se3
      • 2.Sf6#
    • 1...Sf6
      • 2.Sxf6#
    • 1...Sh6
      • 2.Sf6#
    • 1...cxd4
      • 2.Qxc4#
    • 1...exd4
      • 2.Bxg4#
    • 1...exf4
      • 2.Shxf4#
    • 1...e4
      • 2.Bxg4#
    • 1...dxe6
      • 2.Be4#
  • Tries
    • 1.dxc5?
      • threat
        • 2.Qxd6#
      • 1...Kxc5
        • 2.Qxc4#
      • 1...Bxc5
        • 2.Sc3#
      • 1...dxc5
        • 2.Be4#
      • 1...Qxc5!
  • Keys
    • 1.dxe5!
      • threat
        • 2.Qxd6#
      • 1...Kxe5
        • 2.Bxg4#
      • 1...Sxe5
        • 2.Sf6#
      • 1...dxe5
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 14
  • Sets
    • R(m);OGATE,XP(L)::QAB(J),XR(m)
    • R(m);OGATE::PXR(m)=Q
    • B(b);N_GUARD::P(B),XP(f)
    • B(e);N_GUARD::S(A)
    • B(e);N_GUARD::S(A),XB(e)
    • S(g);N_GUARD::S(I)
    • S(g);N_GUARD::S(I),XS(g)
    • P(h);XP(C)::QAB1(J),XP(f)
    • P(j);OGATEB,XP(C)::R(H)+B(G),XS(g)
    • P(j);XR(D)::S(I),XP(j)
    • P(j);OGATEB::R(H)+B(G),XS(g)
    • P(l);SBLOCK,XP(K)::B(G)
  • Tries
    • Try
      • P(C);XP(h)
      • Threat
        • QAR1(J),XP(k)
      • Vars
        • K(i);P-FLIGHT,XP(C)::QAR1(J),XP(f)
        • B(e);N_GUARD,SBLOCK,XP(C)::S(A)
        • P(k);SBLOCK,XP(C)::B(G)
      • Refutation
        • Q(a);XP(C)
  • Actual
    • P(C);XP(j)
    • Threat
      • QAR1(J),XP(k)
    • Vars
      • K(i);OGATEB,P-FLIGHT,XP(C)::R(H)+B(G),XS(g)
      • S(g);N_GUARD,SBLOCK,XP(C)::S(I)
      • P(k);XP(C)::B(G)
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