MESON Chess Problem Database

Problem Display
PID: 266005 (2N5/p2p1np1/Pp1Pp3/1PNkp3/PQb1p3/1p2B1b1/3K1R2/8 w - - 0 1)

Labai, Zoltan

StrateGems, 2022

2N5/p2p1np1/Pp1Pp3/1PNkp3/PQb1p3/1p2B1b1/3K1R2/8

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Qxe4#
    • 1...Be2
      • 2.Qxe4#
    • 1...Bxb5
      • 2.Qxe4#
    • 1...Sxd6
      • 2.Se7#
    • 1...bxc5
      • 2.Qxc5#
  • Tries
    • 1.Kc3?
      • threat
        • 2.Qxc4#
      • 1...Bxb5
        • 2.Qxe4#
      • 1...Sxd6
        • 2.Se7#
      • 1...Bf1
        • 2.Qxe4#
      • 1...Be2
        • 2.Qxe4#
      • 1...Bd3!
    • 1.Sxe6?
      • threat
        • 2.Sc7#
      • 1...Kxe6
        • 2.Qxc4#
      • 1...dxe6
        • 2.Se7#
      • 1...Bxb5!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sc3#
      • 1...Kxe4
        • 2.Qxc4#
      • 1...Bxb5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(c);OGATE::QAB1(E),XP(d)
    • B(c);OGATE,XP(F)::QAB1(E),XP(d)
    • S(k);SBLOCK,XP(I)::S(J)
    • P(g);OGATE,XS(G)::QAR1(E),XP(g)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAB1(E),XB(c)
      • Vars
        • B(c);OGATE,XP(F)::QAB1(E),XP(d)
        • S(k);SBLOCK,XP(I)::S(J)
        • B(c);OGATE::QAB1(E),XP(d)
      • Refutation
        • B(c);
    • Try
      • S(G);XP(h)
      • Threat
        • S(G)
      • Vars
        • K(e);N_GUARD,S_FLIGHT,XS(G)::QAB(E),XB(c)
        • P(j);SBLOCK,XS(G)::S(J)
      • Refutation
        • B(c);XP(F)
  • Actual
    • S(G);XP(d)
    • Threat
      • S(G)
    • Vars
      • K(e);N_GUARD,P_SPINB(c),S_FLIGHT,XS(G)::QAR2(E),XB(c)
      • B(c);XP(F)::S(J)
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Developed and maintained by Brian Stephenson.
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