MESON Chess Problem Database

Problem Display
PID: 205488 (3N1bB1/3p4/b7/B3R3/n1PkP3/4pP2/1n5Q/2N3K1 w - - 0 1)

Boxo, Eugenio

Brisbane Courier, 1933

3N1bB1/3p4/b7/B3R3/n1PkP3/4pP2/1n5Q/2N3K1

#2

10 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Se2#
      • 2.Sb3#
    • 1...Sxc4
      • 2.Rd5#
    • 1...Sc5
      • 2.Qxb2#
    • 1...Sb6
      • 2.Qxb2#
    • 1...d6
      • 2.Sc6#
  • Tries
    • 1.Rf5?
      • threat
        • 2.Qe5#
      • 1...Sxc4
        • 2.Rd5#
      • 1...e2
        • 2.Qf2#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Bg7
        • 2.Qd6#
      • 1...Sd3
        • 2.Se2#
        • 2.Sb3#
      • 1...d6
        • 2.Sc6#
      • 1...d5!
    • 1.Rg5?
      • threat
        • 2.Qe5#
      • 1...Sxc4
        • 2.Rd5#
      • 1...e2
        • 2.Qf2#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Bg7
        • 2.Qd6#
      • 1...Sd3
        • 2.Se2#
        • 2.Sb3#
      • 1...d6
        • 2.Sc6#
      • 1...d5!
    • 1.Rh5?
      • threat
        • 2.Qe5#
      • 1...Sxc4
        • 2.Rd5#
      • 1...e2
        • 2.Qf2#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Bg7
        • 2.Qd6#
      • 1...Sd3
        • 2.Se2#
        • 2.Sb3#
      • 1...d6
        • 2.Sc6#
      • 1...d5!
    • 1.Qxb2+?
      • 1...Sc3
        • 2.Bxc3#
        • 2.Qxc3#
      • 1...Sxb2!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Qe5#
      • 1...Kxc5
        • 2.Sb3#
      • 1...Bxc5
        • 2.Qh8#
      • 1...Sxc4
        • 2.Rd5#
      • 1...Sxc5
        • 2.Qxb2#
      • 1...e2
        • 2.Qf2#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Bg7
        • 2.Qd6#
      • 1...Sd3
        • 2.Sb3#
      • 1...d5
        • 2.Se6#
      • 1...d6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • S(a);SBLOCK,XP(E)::R1(H)
    • S(c);N_GUARD::QAB(C),XS(a)
    • P(f);N_GUARD::S(I)
  • Tries
    • Try
      • R(H);
      • Threat
        • QAB1(C)
      • Vars
        • S(a);SBLOCK,XP(E)::R1(H)
        • P(b);OGATEB::QAB(C)
        • B(g);N_GUARD::QAR2(C),XB(g)
        • B(g);N_GUARD::QAR2(C)
        • P(f);N_GUARD::S(I)
      • Refutation
        • P(f);
    • Try
      • R(H);
      • Threat
        • QAB1(C)
      • Vars
        • S(a);SBLOCK,XP(E)::R1(H)
        • P(b);OGATEB::QAB(C)
        • B(g);N_GUARD::QAR2(C),XB(g)
        • B(g);N_GUARD::QAR2(C)
        • P(f);N_GUARD::S(I)
      • Refutation
        • P(f);
    • Try
      • R(H);
      • Threat
        • QAB1(C)
      • Vars
        • S(a);SBLOCK,XP(E)::R1(H)
        • P(b);OGATEB::QAB(C)
        • B(g);N_GUARD::QAR2(C),XB(g)
        • B(g);N_GUARD::QAR2(C)
        • P(f);N_GUARD::S(I)
      • Refutation
        • P(f);
    • Try
      • Q(C);CHECK,XS(a)
      • Refutation
        • S(c);XQ(C)
  • Actual
    • R(H);
    • Threat
      • QAB1(C)
    • Vars
      • K(d);S_FLIGHT,XR(H)::S(A)
      • B(g);N_GUARD,SBLOCK,XR(H)::QAB(C)
      • S(a);SBLOCK,XP(E)::R1(H)
      • S(c);N_GUARD,SBLOCK,XR(H)::QAB(C),XS(a)
      • P(b);OGATEB::QAB(C)
      • B(g);N_GUARD::QAR2(C),XB(g)
      • B(g);N_GUARD::QAR2(C)
      • S(a);SBLOCK::S(A)
      • P(f);N_GUARD::S(I)
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