MESON Chess Problem Database

Problem Display
PID: 269470 (q6R/Qn6/3p3B/5PPk/r1n1R3/4p2N/Bb4P1/7K w - - 0 1)

Chicco, Adriano

L'Italia Scacchistica, 1932

q6R/Qn6/3p3B/5PPk/r1n1R3/4p2N/Bb4P1/7K

#2

10 + 8

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qxa7
      • 2.Bg7#
    • 1...Bc1
      • 2.Bf8#
    • 1...Ba3
      • 2.Bf8#
    • 1...Sd2
      • 2.Bf7#
    • 1...Sa3
      • 2.Bf7#
    • 1...Sca5
      • 2.Bf7#
    • 1...Se5
      • 2.Bf8#
    • 1...Sb6
      • 2.Bf7#
    • 1...Sba5
      • 2.Qf7#
    • 1...Sc5
      • 2.Qf7#
    • 1...Sd8
      • 2.Bg7#
  • Tries
    • 1.Qxe3?
      • threat
        • 2.Qe2#
        • 2.Qf3#
      • 1...Sxe3
        • 2.Bf7#
      • 1...Sd2
        • 2.Bf7#
      • 1...Se5
        • 2.Bf8#
      • 1...Ra3!
    • 1.Qd4?
      • threat
        • 2.Bf8#
        • 2.Rh4#
      • 1...Qxh8
        • 2.Rh4#
      • 1...Qf8
        • 2.Bxf8#
        • 2.Rh4#
      • 1...Qg8
        • 2.Rh4#
      • 1...Bxd4!
    • 1.Qxa8?
      • threat
        • 2.Bg7#
        • 2.Qe8#
      • 1...Bxh8
        • 2.Qe8#
      • 1...Bg7
        • 2.Bxg7#
        • 2.Qe8#
      • 1...Se5
        • 2.Bg7#
        • 2.Bf8#
      • 1...Sd8
        • 2.Bg7#
      • 1...Rxa8!
  • Keys
    • 1.g3!
      • threat
        • 2.Rh4#
      • 1...Sd2
        • 2.Bf7#
      • 1...Sa3
        • 2.Bf7#
      • 1...Sca5
        • 2.Bf7#
      • 1...Se5
        • 2.Bf8#
      • 1...Sb6
        • 2.Bf7#
      • 1...Sba5
        • 2.Qf7#
      • 1...Sc5
        • 2.Qf7#
      • 1...Sd8
        • 2.Bg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(h);N_GUARD,SBLOCK,XQ(I)::R(J)+B(H)
    • B(a);N_GUARD::R(J)+B(H)
    • S(d);OGATE::B(B)
    • S(d);S_CUTB(a)::R(J)+B(H)
    • S(g);OGATE,SBLOCK::QAB(I)
    • S(g);OGATE::QAB(I)
    • S(g);S_CUTQ(h)::R(J)+B(H)
  • Tries
    • Try
      • Q(I);XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • S(d);OGATE,XQ(I)::B(B)
        • S(d);OGATE::B(B)
        • S(d);S_CUTB(a)::R(J)+B(H)
      • Refutation
        • R(c);
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • Q(h);XR(J)::R1(E)
        • Q(h);::R1(E)
      • Refutation
        • B(a);XQ(I)
    • Try
      • Q(I);XQ(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XR(J)::QAB(I)
        • S(g);::R(J)+B(H)
      • Refutation
        • R(c);XQ(I)
  • Actual
    • P(C);
    • Threat
      • R1(E)
    • Vars
      • S(d);OGATE::B(B)
      • S(d);S_CUTB(a)::R(J)+B(H)
      • S(g);OGATE,P_PINR(E),SBLOCK::QAB(I)
      • S(g);OGATE,P_PINR(E)::QAB(I)
      • S(g);P_PINR(E),S_CUTQ(h)::R(J)+B(H)
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