MESON Chess Problem Database

Problem Display
PID: 1054 (8/8/2K2P2/5p1N/2p1kB2/2P4Q/4r2P/4N1bb w - - 0 1)

Steiner, Paul

The Problemist Supplement, 1998

8/8/2K2P2/5p1N/2p1kB2/2P4Q/4r2P/4N1bb

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Qe3#
    • 1...Rg2
      • 2.Qf3#
    • 1...Bf3
      • 2.Qxf3#
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sg3#
      • 1...Bxh2
        • 2.Qxe2#
      • 1...Rf2
        • 2.Qxc4#
      • 1...Rg2
        • 2.Qf3#
      • 1...Re3
        • 2.Qxc4#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Bf3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,S_CUTB(a)::QAR1(D)
    • R(c);S_CUTB(b)::QAB1(D)
    • B(b);N_GUARD::QAB1(D),XB(b)
  • Actual
    • Q(D);
    • Threat
      • S(F)
    • Vars
      • B(a);N_GUARD,XP(B)::QAR2(D),XR(c)
      • R(c);OGATE::QAR2(D),XP(d)
      • R(c);S_CUTB(b)::QAB1(D)
      • B(a);OGATE::QAB(D),XB(b)
      • B(b);N_GUARD::QAB1(D),XB(b)
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