MESON Chess Problem Database

Problem Display
PID: 257709 (1R2N3/2QPp3/1pNp4/1pPPp3/bBk5/4P3/K1PRP3/8 w - - 0 1)

Labai, Zoltan

6th HM., Polski Zwiazek Szachowy, 2015

1R2N3/2QPp3/1pNp4/1pPPp3/bBk5/4P3/K1PRP3/8

#2

13 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bb3+
      • 2.cxb3#
    • 1...e4
      • 2.Rd4#
    • 1...e6
      • 2.Sxd6#
  • Tries
    • 1.Ka3?
      • 1...bxc5
        • 2.Sa5#
      • 1...dxc5
        • 2.Sxe5#
      • 1...Bb3
        • 2.cxb3#
      • 1...e4
        • 2.Rd4#
      • 1...e6
        • 2.Sxd6#
      • 1...Bxc2!
    • 1.Qxd6?
      • 1...Bb3+
        • 2.cxb3#
      • 1...Bxc2
        • 2.Rxc2#
      • 1...bxc5
        • 2.Qxc5#
      • 1...exd6
        • 2.Sxd6#
      • 1...e4
        • 2.Rd4#
      • 1...e6!
    • 1.cxb6?
      • 1...Bb3+
        • 2.cxb3#
      • 1...e4
        • 2.Rd4#
      • 1...e6
        • 2.Sxd6#
      • 1...Bxc2!
  • Keys
    • 1.Qxb6!
      • 1...Bb3+
        • 2.cxb3#
      • 1...Bxc2
        • 2.Qxb5#
      • 1...dxc5
        • 2.Qxc5#
      • 1...e4
        • 2.Rd4#
      • 1...e6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);CHECK,OGATE::P(B),XB(a)
    • P(d);N_GUARD::R1(C)
    • P(g);N_GUARD::S(M),XP(f)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(e);N_GUARD,XP(G)::S(I)
        • P(f);N_GUARD,XP(G)::S(I),XP(d)
        • B(a);OGATE::P(B),XB(a)
        • P(d);N_GUARD::R1(C)
        • P(g);N_GUARD::S(M),XP(f)
      • Refutation
        • B(a);XP(B)
    • Try
      • Q(J);XP(f)
      • Vars
        • B(a);CHECK,OGATE::P(B),XB(a)
        • B(a);OGATE,XP(B)::R(C),XB(a)
        • P(e);OGATE,XP(G)::QAR1(J),XP(e)
        • P(g);XQ(J)::S(M),XP(g)
        • P(d);N_GUARD::R1(C)
      • Refutation
        • P(g);
    • Try
      • P(G);XP(e)
      • Vars
        • B(a);CHECK,OGATE::P(B),XB(a)
        • P(d);N_GUARD::R1(C)
        • P(g);N_GUARD::S(M),XP(f)
      • Refutation
        • B(a);XP(B)
  • Actual
    • Q(J);XP(e)
    • Vars
      • B(a);CHECK,OGATE::P(B),XB(a)
      • B(a);N_GUARD,XP(B)::QAB1(J),XP(c)
      • P(f);OGATE,XP(G)::QAR1(J),XP(f)
      • P(d);N_GUARD::R1(C)
      • P(g);N_GUARD::S(M),XP(f)
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