MESON Chess Problem Database

Problem Display
PID: 266002 (1B1Q4/7p/2p5/p1RNn3/Rp2kbP1/4Pr1N/2b1Pp2/5K2 w - - 0 1)

Guida, Marco

StrateGems, 2022

1B1Q4/7p/2p5/p1RNn3/Rp2kbP1/4Pr1N/2b1Pp2/5K2

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3
      • 2.Sf6#
    • 1...Rg3
      • 2.Sxf2#
    • 1...Bh2
      • 2.Sg5#
    • 1...Bxe3
      • 2.Sc3#
    • 1...Bg3
      • 2.Sg5#
    • 1...Bg5
      • 2.Sxg5#
    • 1...Sd3
      • 2.Rc4#
    • 1...Sc4
      • 2.Rxc4#
    • 1...Sg6
      • 2.Rc4#
    • 1...Sf7
      • 2.Rc4#
  • Tries
    • 1.Rxb4+?
      • 1...Sc4
        • 2.Rbxc4#
        • 2.Rcxc4#
      • 1...axb4!
    • 1.Qg5?
      • threat
        • 2.Qf5#
      • 1...Rxe3
        • 2.Qxf4#
      • 1...Bxe3
        • 2.Qxe5#
      • 1...Bxg5
        • 2.Sxg5#
      • 1...Sxg4
        • 2.Rc4#
      • 1...Bh2
        • 2.Sc3#
      • 1...Bg3
        • 2.Sc3#
      • 1...cxd5!
  • Keys
    • 1.Sxb4!
      • threat
        • 2.Qd4#
      • 1...Kxe3
        • 2.Sxc2#
      • 1...Rxe3
        • 2.Sxf2#
      • 1...Bxe3
        • 2.Rxe5#
      • 1...Sd7
        • 2.Sxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • R(c);SBLOCK,XP(C)::S(H)
    • R(c);N_GUARD::S(D),XP(b)
    • B(f);N_GUARD::S(D)
    • B(f);SBLOCK,XP(C)::S(H)
    • B(f);N_GUARD::S(D),XB(f)
    • S(h);N_GUARD::R(G)
    • S(h);N_GUARD,N_SPINP(d)::R(G),XS(h)
  • Tries
    • Try
      • R(E);CHECK,XP(d)
      • Refutation
        • P(g);XR(E)
    • Try
      • Q(J);
      • Threat
        • QAB1(J)
      • Vars
        • R(c);N_GUARD,XP(C)::QAR1(J),XB(f)
        • B(f);N_GUARD,XP(C)::QAR1(J),XS(h)
        • B(f);XQ(J)::S(D),XB(f)
        • S(h);N_GUARD,XP(F)::R(G)
        • B(f);::S(H)
      • Refutation
        • P(i);XS(H)
  • Actual
    • S(H);XP(d)
    • Threat
      • QAR1(J)
    • Vars
      • K(e);P-FLIGHT,S_CUTS(h),XP(C)::S(H),XB(a)
      • R(c);N_GUARD,SBLOCK,XP(C)::S(D),XP(b)
      • B(f);N_GUARD,SBLOCK,XP(C)::R1(G),XS(h)
      • S(h);N_GUARD::R(E)+S(H),XB(a)
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