MESON Chess Problem Database

Problem Display
PID: 207083 (6Q1/2N5/B4p2/2p3N1/7R/K1k2bbR/1nppp3/2n4q w - - 0 1)

Bottacchi, Antonio

3rd Prize, Il Problema, 1933/I

6Q1/2N5/B4p2/2p3N1/7R/K1k2bbR/1nppp3/2n4q

#2

7 + 11

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Sd5#
    • 1...Bf2
      • 2.Sd5#
    • 1...Bh2
      • 2.Sd5#
    • 1...Be5
      • 2.Sd5#
    • 1...Bd6
      • 2.Sd5#
    • 1...Sa2
      • 2.Qb3#
    • 1...Sb3
      • 2.Qxb3#
    • 1...Scd3
      • 2.Sb5#
      • 2.Qb3#
    • 1...Sd1
      • 2.Qc4#
    • 1...Sbd3
      • 2.Sb5#
      • 2.Rc4#
      • 2.Qc4#
    • 1...Sa4
      • 2.Qc4#
    • 1...Sc4+
      • 2.Qxc4#
  • Tries
    • 1.Rc4+?
      • 1...Sxc4+
        • 2.Qxc4#
      • 1...Kd3!
    • 1.Qd5?
      • threat
        • 2.Sb5#
      • 1...Sc4+
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Bxc7
        • 2.Se4#
      • 1...Bxd5!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Sb5#
      • 1...Sc4+
        • 2.Rxc4#
      • 1...Bxh4
        • 2.Se4#
        • 2.Qxf6#
      • 1...Bxc7
        • 2.Se4#
      • 1...Be4
        • 2.Qxf6#
      • 1...Bg4
        • 2.Qxf6#
      • 1...Bd5
        • 2.Qxf6#
      • 1...Bc6
        • 2.Qxf6#
      • 1...Bf4
        • 2.Se4#
      • 1...Bd6
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 8
  • Sets
    • B(i);P_SPINB(h)::S(F)
    • S(a);N_GUARD::QAR1(G)
    • S(a);N_GUARD::QAR1(G),XS(a)
    • S(c);N_GUARD::QAR1(G)
    • S(c);CHECK,N_GUARD::QAR1(G),XS(c)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • S(c);CHECK,OGATE,XR(C)::QAR1(G),XS(c)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • Q(G);
      • Threat
        • S(F)
      • Vars
        • B(i);P_SPINB(h),XS(F)::S(D)
      • Refutation
        • B(h);P_SPINB(i),XQ(G)
  • Actual
    • Q(G);
    • Threat
      • S(F)
    • Vars
      • S(c);CHECK,N_GUARD::R1(C),XS(c)
      • B(i);P_SPINB(h),XS(F)::S(D)
      • B(h);P_SPINB(i)::QAB(G),XP(k)
      • B(i);P_SPINB(h)::S(D)
      • B(i);P_SPINB(h)::S(F)
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Developed and maintained by Brian Stephenson.
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