MESON Chess Problem Database

Problem Display
PID: 120061 (2K2N2/8/4P1N1/R1Pk3r/Bnp4p/2P5/5p2/1Q2n3 w - - 0 1)

Feigl, Maximilian

Deutsche Schachzeitung, 1912

2K2N2/8/4P1N1/R1Pk3r/Bnp4p/2P5/5p2/1Q2n3

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sf4#
      • 2.Se7#
    • 1...Rf5
      • 2.Qxf5#
    • 1...Rh6
      • 2.Qf5#
    • 1...Rh7
      • 2.Qf5#
    • 1...Rh8
      • 2.Qf5#
    • 1...Sec2
      • 2.Qh1#
    • 1...Sed3
      • 2.Qh1#
    • 1...Sa2
      • 2.Qb7#
    • 1...Sbc2
      • 2.Qb7#
    • 1...Sbd3
      • 2.Qb7#
    • 1...Sa6
      • 2.Qb7#
  • Tries
    • 1.Kd7?
      • threat
        • 2.c6#
      • 1...Sec2
        • 2.Qh1#
      • 1...Sed3
        • 2.Qh1#
      • 1...Sbc2
        • 2.Bc6#
        • 2.Qb7#
      • 1...Sbd3
        • 2.Bc6#
        • 2.Qb7#
      • 1...Sa6
        • 2.Bc6#
        • 2.Qb7#
      • 1...Sc6
        • 2.Bxc6#
      • 1...Rh7+!
    • 1.Bc6+?
      • 1...Kxc6
        • 2.Se7#
      • 1...Sxc6!
  • Keys
    • 1.Bc2!
      • threat
        • 2.Be4#
      • 1...Kc6
        • 2.Se7#
      • 1...Sexc2
        • 2.Qh1#
      • 1...Sbxc2
        • 2.Qb7#
      • 1...Sed3
        • 2.Qh1#
      • 1...Sbd3
        • 2.Qb7#
      • 1...Re5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(g);N_GUARD::QAR2(A),XR(g)
    • R(g);N_GUARD::QAR2(A)
    • R(g);N_GUARD,P_PINS(I)::QAR2(A)
    • S(a);OGATE::QAB(A)
    • S(c);OGATE::QAB(A)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Threat
        • R(D)+P(E)
      • Vars
        • S(a);OGATE::QAB(A)
        • S(c);N_GUARD::B(C),XS(c)
      • Refutation
        • R(g);CHECK
    • Try
      • B(C);CHECK
      • Vars
        • K(f);S_FLIGHT,XB(C)::S(G)
      • Refutation
        • S(c);XB(C)
  • Actual
    • B(C);
    • Threat
      • B(C)
    • Vars
      • K(f);S_FLIGHT::S(G)
      • S(a);OGATE,XB(C)::QAB(A)
      • S(c);OGATE,XB(C)::QAB(A)
      • S(a);OGATE::QAB(A)
      • S(c);OGATE::QAB(A)
      • R(g);SBLOCK::S(G)
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