MESON Chess Problem Database

Problem Display
PID: 102064 (7Q/b2N4/2npn1p1/1P1k1P2/r2P3r/BR5R/2PN4/3K4 w - - 0 1)

Schmoll, Werner

Oberosterreichische Nachrichten, 1989

7Q/b2N4/2npn1p1/1P1k1P2/r2P3r/BR5R/2PN4/3K4

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa3
      • 2.c4#
    • 1...Ra5
      • 2.c4#
    • 1...Ra6
      • 2.c4#
    • 1...Bb6
      • 2.Sxb6#
    • 1...Bb8
      • 2.Sb6#
    • 1...Sb4
      • 2.c4#
  • Tries
    • 1.Rbd3?
      • threat
        • 2.Sf6#
      • 1...Raxd4
        • 2.c4#
      • 1...Bxd4
        • 2.Sb6#
      • 1...Scxd4
        • 2.Qa8#
      • 1...Sexd4
        • 2.Qg8#
      • 1...Rhxd4!
  • Keys
    • 1.Rhd3!
      • threat
        • 2.Sf6#
      • 1...Rh1+
        • 2.Qxh1#
      • 1...Raxd4
        • 2.c4#
      • 1...Rhxd4
        • 2.Qh1#
      • 1...Bxd4
        • 2.Sb6#
      • 1...Scxd4
        • 2.Qa8#
      • 1...Sexd4
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 6
  • Sets
    • R(a);N_GUARD,XB(D)::P(B)
    • R(a);N_GUARD::P(B)
    • B(h);N_GUARD::S(J),XB(h)
    • B(h);N_GUARD::S(J)
    • S(d);S_CUTR(a)::P(B)
  • Tries
    • Try
      • R(E);
      • Threat
        • S(J)
      • Vars
        • R(a);N_GUARD,P_SPINR(a),XP(G)::P(B)
        • B(h);N_GUARD,P_SPINB(h),XP(G)::S(J)
        • S(d);OGATEB,P_SPINS(d),XP(G)::QAB(K)
        • S(f);OGATEB,P_SPINS(f),XP(G)::QAB(K)
      • Refutation
        • R(b);P_SPINR(b),XP(G)
  • Actual
    • R(F);
    • Threat
      • S(J)
    • Vars
      • R(b);CHECK,OGATE::QAB(K),XR(b)
      • R(a);N_GUARD,P_SPINR(a),XP(G)::P(B)
      • R(b);OGATE,P_SPINR(b),XP(G)::QAB(K)
      • B(h);N_GUARD,P_SPINB(h),XP(G)::S(J)
      • S(d);OGATEB,P_SPINS(d),XP(G)::QAB(K)
      • S(f);OGATEB,P_SPINS(f),XP(G)::QAB(K)
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