MESON Chess Problem Database

Problem Display
PID: 268820 (q1N5/b4B2/8/1n6/1r1Bk3/Qp1RpR2/2n1P3/7K w - - 0 1)

Croitor, Mikhail Vasilevich

Troll, 2022

q1N5/b4B2/8/1n6/1r1Bk3/Qp1RpR2/2n1P3/7K

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Qe7#
    • 1...Rc4
      • 2.Qe7#
    • 1...Rxd4
      • 2.Qe7#
    • 1...Bc5
      • 2.Qxa8#
    • 1...Bb6
      • 2.Qxa8#
    • 1...Bb8
      • 2.Qxa8#
    • 1...Scxd4
      • 2.Rdxe3#
    • 1...Sxa3
      • 2.Sd6#
    • 1...Sc3
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sc7
      • 2.Sd6#
  • Tries
    • 1.Bg7?
      • threat
        • 2.Bg6#
      • 1...Qxc8
        • 2.Bd5#
      • 1...Qd5
        • 2.Bxd5#
      • 1...Rd4
        • 2.Qe7#
      • 1...Bd4
        • 2.Qxa8#
      • 1...Scd4
        • 2.Rdxe3#
      • 1...Sbd4
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Qc6!
    • 1.Bh8?
      • threat
        • 2.Bg6#
      • 1...Qxc8
        • 2.Bd5#
      • 1...Qd5
        • 2.Bxd5#
      • 1...Rd4
        • 2.Qe7#
      • 1...Bd4
        • 2.Qxa8#
      • 1...Scd4
        • 2.Rdxe3#
      • 1...Sbd4
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Qc6!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Bg6#
      • 1...Qxc8
        • 2.Bd5#
      • 1...Qd5
        • 2.Bxd5#
      • 1...Rd4
        • 2.Qe7#
      • 1...Bd4
        • 2.Qxa8#
      • 1...Scd4
        • 2.Rdxe3#
      • 1...Sbd4
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • R(d);OGATE::QAR(C)
    • R(d);OGATE,XB(F)::QAR(C)
    • B(g);OGATE::QAB(C),XQ(h)
    • S(a);N_GUARD,SBLOCK,XB(F)::R1(D),XP(c)
    • S(f);N_GUARD,XQ(C)::S(H)
    • S(f);N_GUARD::S(H)
    • S(f);N_GUARD::S(H),XS(f)
  • Tries
    • Try
      • B(F);
      • Threat
        • B(G)
      • Vars
        • Q(h);N_GUARD,XS(H)::B(G)
        • Q(h);N_GUARD::B(G),XQ(h)
        • R(d);OGATE::QAR(C)
        • B(g);OGATE::QAB(C),XQ(h)
        • S(a);N_GUARD,S_CUTB(g)::R1(D),XP(c)
        • S(f);N_GUARD::S(H)
        • S(f);N_GUARD::S(H),XS(f)
      • Refutation
        • Q(h);
    • Try
      • B(F);
      • Threat
        • B(G)
      • Vars
        • Q(h);N_GUARD,XS(H)::B(G)
        • Q(h);N_GUARD::B(G),XQ(h)
        • R(d);OGATE::QAR(C)
        • B(g);OGATE::QAB(C),XQ(h)
        • S(a);N_GUARD,S_CUTB(g)::R1(D),XP(c)
        • S(f);N_GUARD::S(H)
        • S(f);N_GUARD::S(H),XS(f)
      • Refutation
        • Q(h);
  • Actual
    • B(F);
    • Threat
      • B(G)
    • Vars
      • Q(h);N_GUARD,XS(H)::B(G)
      • Q(h);N_GUARD::B(G),XQ(h)
      • R(d);OGATE::QAR(C)
      • B(g);OGATE::QAB(C),XQ(h)
      • S(a);N_GUARD,S_CUTB(g)::R1(D),XP(c)
      • S(f);N_GUARD::S(H)
      • S(f);N_GUARD::S(H),XS(f)
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