MESON Chess Problem Database

Problem Display
PID: 276194 (5q1r/1p1n1p1p/5pR1/1KpN1k2/5N2/1p6/2b1Q3/bBB3R1 w - - 0 1)

Burda, Josef

Pat a Mat, 1990

5q1r/1p1n1p1p/5pR1/1KpN1k2/5N2/1p6/2b1Q3/bBB3R1

#2

8 + 12

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qh6
      • 2.Se7#
    • 1...Qe7
      • 2.Sxe7#
    • 1...Qg7
      • 2.Se7#
    • 1...Qa8
      • 2.Se7#
    • 1...Qb8
      • 2.Se7#
    • 1...Qc8
      • 2.Se7#
    • 1...Qg8
      • 2.Se7#
    • 1...Bd3+
      • 2.Bxd3#
    • 1...Be4
      • 2.Qh5#
      • 2.Qxe4#
    • 1...Se5
      • 2.Rxf6#
    • 1...b2
      • 2.Bxc2#
    • 1...fxg6
      • 2.Qe6#
  • Tries
    • 1.Rh6?
      • threat
        • 2.Rh5#
      • 1...Bd3+
        • 2.Bxd3#
      • 1...Qxh6
        • 2.Se7#
      • 1...Qg7
        • 2.Se7#
      • 1...Qg8
        • 2.Se7#
      • 1...Rg8!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Sh4#
      • 1...Bd3+
        • 2.Bxd3#
      • 1...Kxg6
        • 2.Sh4#
        • 2.Qg4#
      • 1...hxg6
        • 2.Rf1#
      • 1...Be5
        • 2.Qg4#
      • 1...Be4
        • 2.Qxe4#
      • 1...Se5
        • 2.Rxf6#
      • 1...Qh6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(k);N_GUARD::S(G)
    • Q(k);N_GUARD::S(G),XQ(k)
    • B(b);CHECK,OGATE::B(A),XB(b)
    • S(h);N_GUARD,S_CUTB(a)::R1(H),XP(f)
    • P(c);N_GUARD::B(A),XB(b)
    • P(i);N_GUARD,XR(H)::QAB1(D)
  • Tries
    • Try
      • R(H);
      • Threat
        • R(H)
      • Vars
        • B(b);CHECK,OGATE::B(A),XB(b)
        • Q(k);N_GUARD,XR(H)::S(G)
        • Q(k);N_GUARD::S(G)
      • Refutation
        • R(l);
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • B(b);CHECK,OGATE::B(A),XB(b)
      • P(j);SBLOCK,XR(H)::R(C)
      • B(a);SBLOCK::QAB1(D)
      • B(b);N_GUARD::QAB1(D),XB(b)
      • S(h);N_GUARD,S_CUTB(a)::R1(H),XP(f)
      • Q(k);N_GUARD::S(G)
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Developed and maintained by Brian Stephenson.
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