MESON Chess Problem Database

Problem Display
PID: 258822 (2B5/1pK1p3/rp1PR3/p1Pkp3/1P6/1P2BP1b/n1R5/1N3n2 w - - 0 1)

Labai, Zoltan

2nd Prize, SuperProblem 260. TT, 2021

2B5/1pK1p3/rp1PR3/p1Pkp3/1P6/1P2BP1b/n1R5/1N3n2

#2

11 + 10

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe6
      • 2.Bxb7#
    • 1...Sd2
      • 2.Rxd2#
    • 1...Sh2
      • 2.Rd2#
    • 1...Sxe3
      • 2.Rd2#
    • 1...Sg3
      • 2.Rd2#
    • 1...Sc1
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Sxb4
      • 2.Sc3#
    • 1...e4
      • 2.fxe4#
    • 1...bxc5
      • 2.Rxc5#
    • 1...exd6
      • 2.Rxd6#
  • Tries
    • 1.Rxa2?
      • threat
        • 2.Sc3#
      • 1...Sxe3
        • 2.Rd2#
      • 1...axb4!
    • 1.dxe7?
      • threat
        • 2.Rd6#
      • 1...Bxe6
        • 2.Bxb7#
      • 1...bxc5
        • 2.Rxc5#
      • 1...e4
        • 2.fxe4#
      • 1...b5!
  • Keys
    • 1.cxb6!
      • threat
        • 2.Rc5#
      • 1...Sxe3
        • 2.Rd2#
      • 1...exd6
        • 2.Rxd6#
      • 1...Sc3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • B(c);SBLOCK,XR(I)::B(K),XP(i)
    • S(a);N_GUARD::R(B),XS(a)
    • S(a);N_GUARD::R(B)
    • S(a);N_GUARD,XB(D)::R(B)
    • S(b);N_GUARD::S(A)
    • S(b);N_GUARD::S(A),XS(b)
    • S(b);N_GUARD,XP(F)::S(A)
    • P(f);OGATE::P(E),XP(f)
    • P(h);OGATE,XP(G)::R1(B),XP(h)
    • P(j);OGATE,XP(H)::R1(I),XP(j)
  • Tries
    • Try
      • R(B);XS(b)
      • Threat
        • S(A)
      • Vars
        • S(a);N_GUARD,XB(D)::R(B)
      • Refutation
        • P(d);XP(F)
    • Try
      • P(H);XP(j)
      • Threat
        • R1(I)
      • Vars
        • B(c);SBLOCK,XR(I)::B(K),XP(i)
        • P(h);OGATE,XP(G)::R1(B),XP(h)
        • P(f);OGATE::P(E),XP(f)
      • Refutation
        • P(h);
  • Actual
    • P(G);XP(h)
    • Threat
      • R1(B)
    • Vars
      • S(a);N_GUARD,XB(D)::R(B)
      • P(j);OGATE,XP(H)::R1(I),XP(j)
      • S(b);N_GUARD::S(A),XS(b)
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