MESON Chess Problem Database

Problem Display
PID: 194925 (1n2Q1br/7n/6Bp/1p1kP2K/1R1pN1N1/8/8/8 w - - 0 1)

Mosely, Arthur James

L'Italia Scacchistica, 1918

1n2Q1br/7n/6Bp/1p1kP2K/1R1pN1N1/8/8/8

#2

7 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Qxb5#
    • 1...Sg5
      • 2.Sgf6#
    • 1...Sf6+
      • 2.Sgxf6#
    • 1...Sf8
      • 2.Sgf6#
    • 1...Sa6
      • 2.Qd7#
    • 1...Sc6
      • 2.Qd7#
    • 1...Sd7
      • 2.Qxd7#
    • 1...d3
      • 2.Se3#
  • Tries
    • 1.Sc3+?
      • 1...Kc5
        • 2.Qxb5#
      • 1...dxc3!
    • 1.Sef6+?
      • 1...Kc5
        • 2.Qxb5#
      • 1...Sxf6+!
    • 1.Bf5?
      • threat
        • 2.Qxb5#
      • 1...Sf6+
        • 2.Sgxf6#
      • 1...Sd7
        • 2.Qxd7#
        • 2.Qa8#
      • 1...Sa6
        • 2.Qd7#
        • 2.Qa8#
      • 1...Sc6
        • 2.Qd7#
      • 1...Bf7+!
    • 1.Bxh7?
      • threat
        • 2.Sgf6#
      • 1...Sd7
        • 2.Qxd7#
      • 1...Be6
        • 2.Qxb5#
      • 1...Bf7+!
    • 1.Qd8+?
      • 1...Ke6
        • 2.Sc5#
        • 2.Qd6#
      • 1...Sd7
        • 2.Qxd7#
      • 1...Kc6!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Rxb5#
      • 1...Sf6+
        • 2.Sexf6#
      • 1...Sd7
        • 2.Qxd7#
      • 1...Sa6
        • 2.Qd7#
      • 1...Sc6
        • 2.Qd7#
      • 1...d3
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • B(g);SBLOCK::QAR2(G),XP(b)
    • S(e);N_GUARD::S(C)
    • S(e);CHECK,N_GUARD::S(C),XS(e)
    • S(f);N_GUARD::QAR2(G)
    • S(f);N_GUARD::QAR2(G),XS(f)
    • P(a);N_GUARD::S(C)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(G),XP(b)
      • Refutation
        • P(a);XS(B)
    • Try
      • S(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(G),XP(b)
      • Refutation
        • S(e);CHECK,XS(B)
    • Try
      • B(F);
      • Threat
        • QAR2(G),XP(b)
      • Vars
        • S(e);CHECK,N_GUARD::S(C),XS(e)
        • S(f);N_GUARD::QAR2(G)
      • Refutation
        • B(g);CHECK
    • Try
      • B(F);XS(e)
      • Threat
        • S(C)
      • Vars
        • S(f);N_GUARD::QAR2(G),XS(f)
        • B(g);SBLOCK::QAR2(G),XP(b)
      • Refutation
        • B(g);CHECK
    • Try
      • Q(G);CHECK
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::QAR2(G),XS(f)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(G);
    • Threat
      • R(A),XP(b)
    • Vars
      • S(e);CHECK,N_GUARD::S(B),XS(e)
      • S(f);N_GUARD::QAR2(G),XS(f)
      • S(f);N_GUARD::QAR2(G)
      • P(a);N_GUARD::S(B)
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