MESON Chess Problem Database

Problem Display
PID: 185935 (bNQ2b2/5r2/1R1pp3/3kPn1N/6R1/P4PB1/qrn1P2K/8 w - - 0 1)

Faria, Oswaldo

Chess, 1958

bNQ2b2/5r2/1R1pp3/3kPn1N/6R1/P4PB1/qrn1P2K/8

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Qc4#
    • 1...Qc4
      • 2.Qxc4#
    • 1...Qa1
      • 2.Qc4#
    • 1...Qxa3
      • 2.Qc4#
    • 1...Rb3
      • 2.Qc4#
    • 1...Rb5
      • 2.Rxb5#
    • 1...Rf6
      • 2.Sxf6#
    • 1...Ra7
      • 2.Sf6#
    • 1...Rb7
      • 2.Sf6#
      • 2.Qc6#
    • 1...Rd7
      • 2.Sf6#
    • 1...Re7
      • 2.Sf6#
    • 1...Rg7
      • 2.Sf6#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Sb4
      • 2.Rb5#
    • 1...Sd4
      • 2.e4#
    • 1...Se7
      • 2.Rxd6#
  • Keys
    • 1.Sd7!
      • threat
        • 2.Qxa8#
      • 1...Qxa3
        • 2.Qc4#
      • 1...Rxb6
        • 2.Sxb6#
      • 1...Rxd7
        • 2.Sf6#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bb7
        • 2.Qxb7#
      • 1...Sb4
        • 2.Rb5#
      • 1...Scd4
        • 2.Sf4#
      • 1...Sfd4
        • 2.e4#
      • 1...Se7
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(a);N_GUARD::QAB1(K)
    • Q(a);N_GUARD::QAB1(K),XQ(a)
    • Q(a);N_GUARD,XP(C)::QAB1(K)
    • R(b);S_CUTQ(a)::QAB1(K)
    • R(b);N_GUARD::R(I),XR(b)
    • R(h);N_GUARD::S(H),XR(h)
    • R(h);N_GUARD::S(H)
    • B(i);N_GUARD::QAB1(K),XB(i)
    • S(c);P_PINP(A),S_CUTR(b)::R(I)
    • S(e);SBLOCK::P(A)
    • S(e);N_GUARD,S_CUTB(j)::R1(I),XP(f)
  • Actual
    • S(J);
    • Threat
      • QAB(K),XB(i)
    • Vars
      • Q(a);N_GUARD,XP(C)::QAB1(K)
      • R(b);XR(I)::S(J),XR(b)
      • R(h);N_GUARD,XS(J)::S(H)
      • Q(a);N_GUARD::QAB1(K),XQ(a)
      • B(i);N_GUARD::QAB1(K),XB(i)
      • B(i);N_GUARD::QAB(K),XB(i)
      • S(c);P_PINP(A),S_CUTR(b)::R(I)
      • S(c);P_PINP(A),SBLOCK::S(H)
      • S(e);SBLOCK::P(A)
      • S(e);N_GUARD,S_CUTB(j)::R1(I),XP(f)
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