MESON Chess Problem Database

Problem Display
PID: 21878 (7B/rp1p1K2/7R/2k5/1p6/np1Q4/1N6/6b1 w - - 0 1)

Bonner Feast, Frederick

Schuld MT, 1921

7B/rp1p1K2/7R/2k5/1p6/np1Q4/1N6/6b1

#2

5 + 8

5501 Chess Cameos 1936

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Sxa4#
    • 1...Sb1
      • 2.Qc4#
    • 1...Sc2
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sb5
      • 2.Qc4#
    • 1...b5
      • 2.Qd6#
  • Keys
    • 1.Qxd7!
      • threat
        • 2.Qf5#
      • 1...Bh2
        • 2.Bd4#
      • 1...Bd4
        • 2.Bxd4#
      • 1...Sc4
        • 2.Sd3#
      • 1...b5
        • 2.Rc6#
      • 1...b6
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(f);N_GUARD::S(A),XR(f)
    • S(b);N_GUARD::QAR1(B)
    • S(b);N_GUARD::QAR1(B),XS(b)
    • P(g);SBLOCK::QAB1(B)
  • Actual
    • Q(B);XP(h)
    • Threat
      • QAR(B)
    • Vars
      • B(a);N_GUARD::B(E)
      • B(a);N_GUARD::B(E),XB(a)
      • S(b);SBLOCK::S(A)
      • P(g);N_GUARD,P_PINQ(B),SBLOCK::R1(C)
      • P(g);P_PINQ(B),SBLOCK::R(C)
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