MESON Chess Problem Database

Problem Display
PID: 283982 (2b5/3Q4/p2p1b2/2R1N1B1/4k3/2P5/N3K1Pn/n2B3R w - - 0 1)

Bielefeldt, German

Cabrera, Virginio

Best Problems, 2025

2b5/3Q4/p2p1b2/2R1N1B1/4k3/2P5/N3K1Pn/n2B3R

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bb7
      • 2.Qh7#
    • 1...Sc2
      • 2.Bxc2#
    • 1...Sb3
      • 2.Bc2#
    • 1...Sf1
      • 2.Rh4#
    • 1...Sf3
      • 2.gxf3#
    • 1...dxe5
      • 2.Rc4#
      • 2.Qd3#
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sd2#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Bxg5
        • 2.Qa4#
      • 1...Sxf3
        • 2.gxf3#
      • 1...dxc5
        • 2.Qd3#
      • 1...Sb3
        • 2.Bc2#
      • 1...Sf1
        • 2.Rh4#
      • 1...d5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(g);N_GUARD::QAB(J)
    • S(a);N_GUARD::B(A),XS(a)
    • S(a);N_GUARD::B(A)
    • S(b);OGATE::R(B)
    • S(b);OGATE::P(E),XS(b)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • B(f);XP(F)::S(C),XB(f)
      • B(f);N_GUARD,XB(I)::QAR(J)
      • S(b);OGATE,XS(H)::P(E),XS(b)
      • P(e);OGATE,XR(G)::QAB1(J)
      • S(a);N_GUARD::B(A)
      • S(b);OGATE::R(B)
      • P(e);OGATE::QAB1(J),XP(e)
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