MESON Chess Problem Database

Problem Display
PID: 137600 (2r1N3/1B2B3/q1Prp3/3k3n/p3pP2/2Q5/8/2KN1n2 w - - 0 1)

Boros, Sandor

1st Prize, Shakhmatny, 1929

2r1N3/1B2B3/q1Prp3/3k3n/p3pP2/2Q5/8/2KN1n2

#2

8 + 9

881 The Australasian Chess Review 1929

SOLUTION

  • SOUND
  • Sets
    • 1...Rdxc6
      • 2.Qc5#
    • 1...Rd7
      • 2.Qc5#
    • 1...Rdd8
      • 2.Qc5#
    • 1...Rcxc6
      • 2.Sc7#
    • 1...Rc7
      • 2.Sxc7#
    • 1...Ra8
      • 2.Sc7#
    • 1...Rb8
      • 2.Sc7#
    • 1...Rcd8
      • 2.Sc7#
    • 1...Sd2
      • 2.Se3#
    • 1...Sh2
      • 2.Se3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sfg3
      • 2.Se3#
    • 1...Shg3
      • 2.Sf6#
    • 1...Sxf4
      • 2.Sf6#
    • 1...Sf6
      • 2.Sxf6#
    • 1...Sg7
      • 2.Sf6#
  • Keys
    • 1.Sb2!
      • threat
        • 2.Qe5#
      • 1...Qxb7
        • 2.Qc4#
      • 1...Qxc6
        • 2.Qc4#
      • 1...Rdxc6
        • 2.Qc5#
      • 1...Rcxc6
        • 2.Sc7#
      • 1...Sxf4
        • 2.Sf6#
      • 1...Qc4
        • 2.Qxc4#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 13
  • Sets
    • R(g);P_PINQ(C),P_SPINR(g),XP(E)::QAR1(C)
    • R(g);::QAR1(C)
    • R(i);N_GUARD,P_PINQ(C),P_SPINR(i),XP(E)::S(H)
    • R(i);N_GUARD::S(H),XR(i)
    • R(i);N_GUARD::S(H)
    • S(a);N_GUARD::S(B)
    • S(a);N_GUARD::S(B),XS(a)
    • S(e);N_GUARD::S(H)
    • S(e);N_GUARD,XP(D)::S(H)
    • S(e);N_GUARD::S(H),XS(e)
  • Actual
    • S(B);
    • Threat
      • QAR1(C)
    • Vars
      • Q(f);N_GUARD,XB(F)::QAB1(C)
      • Q(f);N_GUARD,P_PINQ(C),P_SPINQ(f),XP(E)::QAB1(C)
      • R(g);P_PINQ(C),P_SPINR(g),XP(E)::QAR1(C)
      • R(i);N_GUARD,P_PINQ(C),P_SPINR(i),XP(E)::S(H)
      • S(e);N_GUARD,XP(D)::S(H)
      • Q(f);N_GUARD,P_PINQ(C)::QAB1(C),XQ(f)
      • P(h);::QAR1(C),XP(h)
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