MESON Chess Problem Database

Problem Display
PID: 260952 (2K2R1n/b7/n1Q1N3/4kN2/1p4P1/2rbPpP1/1B6/3q4 w - - 0 1)

Zuger, Beat

Neue Zurcher Zeitung, 2005

2K2R1n/b7/n1Q1N3/4kN2/1p4P1/2rbPpP1/1B6/3q4

#2

9 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf5
      • 2.Rxf5#
    • 1...Bd4
      • 2.exd4#
  • Tries
    • 1.Bxc3+?
      • 1...Bd4
        • 2.Bxd4#
        • 2.exd4#
      • 1...bxc3!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Re8#
      • 1...Bxf5+
        • 2.Rxf5#
      • 1...Bc4
        • 2.Qe4#
      • 1...Qb3
        • 2.Sxf3#
      • 1...Bc5
        • 2.Qe6#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sc7
        • 2.Qd6#
      • 1...Sg6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(c);OGATE,P_PINS(G),XS(E)::R1(I),XB(c)
    • B(h);N_SPINR(b),OGATE::P(B),XB(h)
  • Tries
    • Try
      • B(A);CHECK,N_SPINQ(F),XR(b)
      • Refutation
        • P(e);XB(A)
  • Actual
    • S(G);
    • Threat
      • R(I)
    • Vars
      • B(c);CHECK,OGATE,XS(E)::R1(I),XB(c)
      • B(c);N_PINQ(F)::QAR1(F)
      • Q(a);N_GUARD::S(G),XP(d)
      • B(h);N_PINQ(F)::QAR1(F)
      • S(g);N_PINQ(F)::QAB1(F)
      • S(i);N_GUARD::S(G)
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