MESON Chess Problem Database

Problem Display
PID: 109026 (5n2/4R2b/K5pR/2PkN3/6p1/Bp1pQ3/8/1q2nB2 w - - 0 1)

Muller, Dieter

Wola Gulowska, 2003

5n2/4R2b/K5pR/2PkN3/6p1/Bp1pQ3/8/1q2nB2

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Bg2#
    • 1...Sg2
      • 2.Bxg2#
    • 1...Se6
      • 2.Rd7#
    • 1...d2
      • 2.Bc4#
    • 1...g5
      • 2.Rd6#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Qe4#
      • 1...Kc4
        • 2.Qd4#
      • 1...Kc6
        • 2.Qe4#
      • 1...Se6
        • 2.Qxe6#
      • 1...g5
        • 2.Qd4#
      • 1...d2!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qe4#
      • 1...Kc4
        • 2.Qd4#
      • 1...Kxc6
        • 2.Qe4#
      • 1...Se6
        • 2.Qxe6#
      • 1...d2
        • 2.Sb4#
      • 1...g5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(b);N_GUARD::B(A)
    • S(b);N_GUARD::B(A),XS(b)
    • S(i);N_GUARD,SBLOCK::R(H)
    • P(d);OGATE::B(A)
    • P(g);OGATE::R1(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(C)
      • Vars
        • K(f);P_SPINP(d),S_FLIGHT::QAR1(C)
        • K(f);P_SPINP(g),S_FLIGHT::QAB(C)
        • S(i);N_GUARD::QAB1(C),XS(i)
        • P(g);::QAR1(C)
      • Refutation
        • P(d);
  • Actual
    • S(E);
    • Threat
      • QAB1(C)
    • Vars
      • K(f);P_SPINP(d),S_FLIGHT::QAR1(C)
      • K(f);P_SPINP(g),S_FLIGHT,XS(E)::QAB(C)
      • S(i);N_GUARD::QAB1(C),XS(i)
      • P(d);::S(E)
      • P(g);::QAR1(C)
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Developed and maintained by Brian Stephenson.
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