MESON Chess Problem Database

Problem Display
PID: 58059 (8/7K/4R3/1NppPnBB/QPr1kPn1/1Rp5/P3P3/5N2 w - - 0 1)

Zworkin, Tim

Chess Life, 1958

8/7K/4R3/1NppPnBB/QPr1kPn1/1Rp5/P3P3/5N2

#2

13 + 7

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sxc3#
    • 1...Sf2
      • 2.Bf3#
    • 1...Sge3
      • 2.Bf3#
    • 1...Sxe5
      • 2.Bf3#
      • 2.Rxe5#
    • 1...Sf6+
      • 2.exf6#
    • 1...Sgh6
      • 2.Bf3#
    • 1...Sfe3
      • 2.Sg3#
    • 1...Sd4
      • 2.Sd6#
    • 1...c2
      • 2.Sd2#
    • 1...d4
      • 2.Qa8#
  • Tries
    • 1.Rb1?
      • threat
        • 2.Qc2#
      • 1...Sf6+
        • 2.exf6#
      • 1...Sfe3
        • 2.Sg3#
      • 1...Sd4
        • 2.Sd6#
      • 1...d4
        • 2.Qa8#
      • 1...Rd4
        • 2.Sxc3#
      • 1...Sf2
        • 2.Bf3#
      • 1...Sge3
        • 2.Bf3#
      • 1...c2!
  • Keys
    • 1.Ra3!
      • threat
        • 2.Qc2#
      • 1...Sf6+
        • 2.exf6#
      • 1...Sfe3
        • 2.Sg3#
      • 1...Sd4
        • 2.Sd6#
      • 1...d4
        • 2.Qa8#
      • 1...c2
        • 2.Sd2#
      • 1...Rd4
        • 2.Sxc3#
      • 1...Sf2
        • 2.Bf3#
      • 1...Sge3
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(b);N_GUARD,SBLOCK::S(H),XP(a)
    • S(d);OGATE::B(K)
    • S(d);CHECK,OGATE::R(L)+P(I),XS(d)
    • S(g);N_GUARD,SBLOCK::S(A)
    • S(g);N_GUARD,SBLOCK::S(H)
    • P(a);N_GUARD::S(A)
    • P(f);OGATEB::QAB(E)
  • Tries
    • Try
      • R(D);
      • Threat
        • QAB(E)
      • Vars
        • S(d);CHECK,OGATE::R(L)+P(I),XS(d)
        • S(g);N_GUARD,SBLOCK::S(A)
        • S(g);N_GUARD,SBLOCK::S(H)
        • P(f);OGATEB::QAB(E)
        • R(b);N_GUARD,SBLOCK::S(H),XP(a)
        • S(d);OGATE::B(K)
      • Refutation
        • P(a);
  • Actual
    • R(D);
    • Threat
      • QAB(E)
    • Vars
      • S(d);CHECK,OGATE::R(L)+P(I),XS(d)
      • S(g);N_GUARD,SBLOCK::S(A)
      • S(g);N_GUARD,SBLOCK::S(H)
      • P(f);OGATEB::QAB(E)
      • P(a);N_GUARD::S(A)
      • R(b);N_GUARD,SBLOCK::S(H),XP(a)
      • S(d);OGATE::B(K)
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