MESON Chess Problem Database

Problem Display
PID: 239614 (1brR4/1Q2P3/1pnp1pp1/1KNk4/2p1b1p1/2B1nq2/6R1/7B w - - 0 1)

Maleika, Gerhard

Heilbronner Stimme, 2003

1brR4/1Q2P3/1pnp1pp1/1KNk4/2p1b1p1/2B1nq2/6R1/7B

#2

8 + 13

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qg3
      • 2.Rd2#
    • 1...Qh3
      • 2.Rd2#
    • 1...Qf4
      • 2.Rd2#
    • 1...Qf5
      • 2.Rd2#
    • 1...Rxd8
      • 2.Qxc6#
    • 1...Bc7
      • 2.Qxc6#
  • Tries
    • 1.Rxd6+?
      • 1...Kxd6
        • 2.Qd7#
      • 1...Bxd6!
    • 1.e8Q?
      • threat
        • 2.Qef7#
        • 2.Qbf7#
        • 2.Qe6#
        • 2.Qg8#
      • 1...Rxd8
        • 2.Qbxc6#
        • 2.Qexc6#
        • 2.Qef7#
        • 2.Qbf7#
        • 2.Qe6#
      • 1...bxc5
        • 2.Qef7#
        • 2.Qbf7#
        • 2.Qg8#
      • 1...Qf5
        • 2.Rd2#
      • 1...Rc7
        • 2.Qe6#
      • 1...Bc7
        • 2.Qbxc6#
        • 2.Qexc6#
        • 2.Qf7#
        • 2.Qe6#
        • 2.Qg8#
      • 1...Bf5!
  • Keys
    • 1.e8S!
      • threat
        • 2.Qf7#
      • 1...Qf5
        • 2.Rd2#
      • 1...Rc7
        • 2.Rxd6#
      • 1...Bf5
        • 2.Sxf6#
      • 1...Bc7
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(b);S_CUTB(d)::R(B)
    • R(m);N_GUARD,N_SPINP(i),XR(H)::QAB1(F),XS(h)
    • B(l);S_CUTR(m)::QAB1(F),XS(h)
  • Tries
    • Try
      • R(H);CHECK,XP(i)
      • Vars
        • K(f);N_SPINS(h),P-FLIGHT,XR(H)::QAR1(F)
      • Refutation
        • B(l);XR(H)
    • Try
      • P(G);
      • Threat
        • DUALS(4)
      • Vars
        • Q(b);S_CUTB(d)::R(B)
        • R(m);::QAB1(G)
      • Refutation
        • B(d);
  • Actual
    • P(G);
    • Threat
      • QAB(F)
    • Vars
      • Q(b);S_CUTB(d)::R(B)
      • R(m);S_CUTB(l)::R1(H),XP(i)
      • B(d);S_CUTQ(b)::S(G),XP(j)
      • B(l);S_CUTR(m)::QAB1(F),XS(h)
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