MESON Chess Problem Database

Problem Display
PID: 199327 (3R2B1/2p3pr/K4p2/1Pk1P3/1p2nQp1/3p2r1/2nB4/2R1q2b w - - 0 1)

Piatesi, Antonio

Suomen Shakki, 1988

3R2B1/2p3pr/K4p2/1Pk1P3/1p2nQp1/3p2r1/2nB4/2R1q2b

#2

8 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd2
      • 2.Qd4#
    • 1...Sf2
      • 2.Qxb4#
      • 2.Qc4#
      • 2.Qd4#
    • 1...Sc3
      • 2.Qc4#
    • 1...Sg5
      • 2.Qxb4#
      • 2.Qc4#
      • 2.Qd4#
    • 1...Sd6
      • 2.Qxb4#
    • 1...fxe5
      • 2.Qxe5#
  • Tries
    • 1.Bb3?
      • threat
        • 2.Rd5#
      • 1...Sxd2
        • 2.Qd4#
      • 1...Sf2
        • 2.Qxb4#
        • 2.Qc4#
        • 2.Qd4#
      • 1...Sc3
        • 2.Qc4#
      • 1...Sg5
        • 2.Qxb4#
        • 2.Qc4#
        • 2.Qd4#
      • 1...Sd6
        • 2.Qxb4#
      • 1...c6!
    • 1.Rxc2+?
      • 1...Sc3
        • 2.Qc4#
        • 2.Qd4#
      • 1...dxc2!
  • Keys
    • 1.exf6!
      • threat
        • 2.Qe5#
        • 2.Qxc7#
        • 2.Qf5#
      • 1...Sxd2
        • 2.Qd4#
      • 1...Sxf6
        • 2.Qxb4#
        • 2.Qc4#
        • 2.Qd4#
      • 1...gxf6
        • 2.Qf5#
      • 1...c6
        • 2.Qe5#
        • 2.Qf5#
      • 1...Qf2
        • 2.Qe5#
        • 2.Qxc7#
      • 1...Qf1
        • 2.Qe5#
        • 2.Qxc7#
      • 1...Rf3
        • 2.Qe5#
        • 2.Qxc7#
      • 1...Rh5
        • 2.Qxc7#
      • 1...Sf2
        • 2.Qxb4#
        • 2.Qc4#
        • 2.Qd4#
      • 1...Sc3
        • 2.Qc4#
      • 1...Sg5
        • 2.Qxb4#
        • 2.Qc4#
        • 2.Qd4#
      • 1...Sd6
        • 2.Qxb4#
      • 1...g5
        • 2.Qe5#
        • 2.Qf5#
      • 1...g6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(g);OGATE,XB(B)::QAB1(C)
    • S(g);N_SPINS(c),OGATE::QAR1(C)
    • S(g);OGATE::QAB1(C),XP(f)
    • P(j);OGATE,XP(E)::QAR2(C),XP(j)
  • Tries
    • Try
      • B(H);
      • Threat
        • R1(G)
      • Vars
        • S(g);OGATE,XB(B)::QAB1(C)
        • S(g);N_SPINS(c),OGATE::QAR1(C)
        • S(g);OGATE::QAB1(C),XP(f)
      • Refutation
        • P(k);
    • Try
      • R(A);CHECK,XS(c)
      • Refutation
        • P(d);XR(A)
  • Actual
    • P(E);XP(j)
    • Threat
      • DUALS(3)
    • Vars
      • S(g);OGATE,XB(B)::QAB1(C)
      • P(l);XP(E)::QAR(C)
      • R(m);::QAR2(C),XP(k)
      • S(g);N_SPINS(c),OGATE::QAR1(C)
      • S(g);OGATE::QAB1(C),XP(f)
      • P(l);::QAR2(C)
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