MESON Chess Problem Database

Problem Display
PID: 276963 (3bB2n/1pR1B3/Np2kPp1/1PP1p3/2P1p1p1/4N3/K2n3P/3R3Q w - - 0 1)

Armeni, Alberto

Peris-120 MT (Problemas), 2024

3bB2n/1pR1B3/Np2kPp1/1PP1p3/2P1p1p1/4N3/K2n3P/3R3Q

#2

13 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc7
      • 2.Sxc7#
    • 1...Sb1
      • 2.Rd6#
    • 1...Sf1
      • 2.Rd6#
    • 1...Sb3
      • 2.Rd6#
    • 1...Sf3
      • 2.Rd6#
    • 1...Sf7
      • 2.Bd7#
    • 1...bxc5
      • 2.Sxc5#
    • 1...bxa6
      • 2.Rc6#
  • Tries
    • 1.Rxd2?
      • threat
        • 2.Rd6#
      • 1...Bxc7
        • 2.Sxc7#
      • 1...Sf7
        • 2.Bd7#
      • 1...Bxe7!
    • 1.Qg2?
      • threat
        • 2.Qxg4#
      • 1...g3
        • 2.Qh3#
      • 1...Bxe7!
    • 1.cxb6?
      • threat
        • 2.Sc5#
      • 1...bxa6
        • 2.Rc6#
      • 1...Sb3
        • 2.Rd6#
      • 1...Bxe7!
  • Keys
    • 1.Qf1!
      • 1...Bxc7
        • 2.Sxc7#
      • 1...Bxe7
        • 2.Rxe7#
      • 1...Sxf1
        • 2.Rd6#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...bxc5
        • 2.Sxc5#
      • 1...bxa6
        • 2.Rc6#
      • 1...Sb1
        • 2.Rd6#
      • 1...Sb3
        • 2.Rd6#
      • 1...Sf3
        • 2.Rd6#
      • 1...Sf7
        • 2.Bd7#
      • 1...g3
        • 2.Qh3#
      • 1...g5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(i);XR(K)::S(I),XB(i)
    • S(a);OGATE::R1(A)
    • S(j);SBLOCK::B(M)
    • P(e);XP(H)::S(I),XP(e)
    • P(h);N_GUARD,XS(I)::R(K)
  • Tries
    • Try
      • R(A);XS(a)
      • Threat
        • R1(A)
      • Vars
        • B(i);XR(K)::S(I),XB(i)
        • S(j);SBLOCK::B(M)
      • Refutation
        • B(i);XB(L)
    • Try
      • Q(B);
      • Threat
        • QAB(B),XP(c)
      • Vars
        • P(c);OGATEB::QAB(B)
      • Refutation
        • B(i);XB(L)
    • Try
      • P(H);XP(e)
      • Threat
        • S(I)
      • Vars
        • P(h);N_GUARD,XS(I)::R(K)
        • S(a);OGATE::R1(A)
      • Refutation
        • B(i);XB(L)
  • Actual
    • Q(B);
    • Vars
      • B(i);XR(K)::S(I),XB(i)
      • B(i);OGATE,XB(L)::R1(K),XB(i)
      • S(a);OGATE,XQ(B)::R1(A)
      • S(a);OGATE,XP(F)::QAB(B),XS(a)
      • P(e);XP(H)::S(I),XP(e)
      • P(h);N_GUARD,XS(I)::R(K)
      • S(a);OGATE::R1(A)
      • S(j);SBLOCK::B(M)
      • P(c);OGATEB::QAB(B)
      • P(g);N_GUARD::QAB1(B)
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