MESON Chess Problem Database

Problem Display
PID: 190851 (3N3K/2rp4/n2p4/P1kB1n2/1R1Rp3/1pB5/2qN4/8 w - - 0 1)

Mira-Kraft, Edwin

Schleswig-Holsteinische Landeszeitung, 2001

(First published on Tue Feb 13 2001)

3N3K/2rp4/n2p4/P1kB1n2/1R1Rp3/1pB5/2qN4/8

#2

8 + 9

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Sxe4#
    • 1...Qd3
      • 2.Sxb3#
    • 1...Qc1
      • 2.Sxb3#
      • 2.Sxe4#
    • 1...Qa2
      • 2.Sxe4#
    • 1...Qb2
      • 2.Sxe4#
    • 1...Qxc3
      • 2.Sxe4#
    • 1...Rc6
      • 2.Sb7#
    • 1...Rb7
      • 2.Sxb7#
  • Keys
    • 1.Bc6!
      • threat
        • 2.Rbc4#
        • 2.Rb5#
        • 2.Rdc4#
        • 2.Rd5#
      • 1...Qxd2
        • 2.Rbc4#
        • 2.Rb5#
        • 2.Rdc4#
      • 1...Qxc3
        • 2.Sxe4#
      • 1...Rxc6
        • 2.Sb7#
      • 1...Sxd4
        • 2.Rc4#
      • 1...Sxb4
        • 2.Rc4#
      • 1...dxc6
        • 2.Se6#
      • 1...d5
        • 2.Rxd5#
      • 1...Qd3
        • 2.Sxb3#
      • 1...Rb7
        • 2.Rbc4#
        • 2.Rdc4#
        • 2.Rd5#
      • 1...Se3
        • 2.Rb5#
      • 1...Se7
        • 2.Rbc4#
        • 2.Rb5#
        • 2.Rdc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • Q(a);N_GUARD::S(A),XP(c)
    • Q(a);N_GUARD::S(A),XP(b)
    • Q(a);N_GUARD,P_PINR(D),XB(B)::S(A),XP(c)
    • R(h);N_GUARD::S(G)
    • R(h);N_GUARD::S(G),XR(h)
  • Actual
    • B(F);
    • Threat
      • DUALS(4)
    • Vars
      • Q(a);N_GUARD,P_PINR(D),XB(B)::S(A),XP(c)
      • R(h);N_GUARD,SBLOCK,XB(F)::S(G)
      • S(e);XR(D)::R1(C)
      • S(f);XR(C)::R1(D)
      • P(i);N_GUARD,SBLOCK,XB(F)::S(G)
      • P(g);::R1(D),XP(g)
      • Q(a);N_GUARD::S(A),XP(b)
      • S(e);::R1(C)
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