MESON Chess Problem Database

Problem Display
PID: 267625 (3q3r/4B1N1/4QnR1/3p2b1/Rr5k/4p1pP/6P1/4Kn2 w - - 0 1)

Bottacchi, Antonio

L'Illustrazione Italiana, 1918

3q3r/4B1N1/4QnR1/3p2b1/Rr5k/4p1pP/6P1/4Kn2

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2022
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rh5
      • 2.Sf5#
    • 1...Bf4
      • 2.Rg4#
      • 2.Qg4#
    • 1...Se4
      • 2.Qg4#
    • 1...Sh5
      • 2.Sf5#
    • 1...Sh7
      • 2.Rh6#
  • Tries
    • 1.Rxb4+?
      • 1...Bf4
        • 2.Rxf4#
        • 2.Rg4#
        • 2.Qg4#
        • 2.Qxf6#
      • 1...Se4
        • 2.Qg4#
      • 1...Sg4
        • 2.Rxg4#
        • 2.Qxg4#
      • 1...d4!
    • 1.Qf5?
      • threat
        • 2.Qxg5#
      • 1...Bf4
        • 2.Rg4#
        • 2.Qg4#
      • 1...Bh6
        • 2.Qh5#
      • 1...Se4
        • 2.Qg4#
        • 2.Qf4#
      • 1...Sh7
        • 2.Rh6#
      • 1...Rh5!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qxg5#
      • 1...Rh5
        • 2.Sf5#
      • 1...Bf4
        • 2.Rg4#
      • 1...Bh6
        • 2.Qh5#
      • 1...Se4
        • 2.Qf4#
      • 1...Sh7
        • 2.Rh6#

This anticipates 147143(1932)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(j);SBLOCK::S(H)
    • S(h);N_GUARD,N_SPINR(d),P_SPINB(g),S_CUTR(d)::QAR1(E)
    • S(h);P_SPINB(g),SBLOCK::S(H)
    • S(h);N_GUARD,P_SPINB(g),S_CUTR(j)::R(F)
  • Tries
    • Try
      • R(D);CHECK,XR(d)
      • Vars
        • S(h);N_GUARD,P_SPINB(g),P_SPINS(h)::QAR1(E)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • Q(E);
      • Threat
        • QAB1(E),XB(g)
      • Vars
        • B(g);OGATE,P_SPINS(h)::QAR1(E)
        • S(h);N_GUARD,P_SPINB(g),S_CUTR(j)::R(F)
      • Refutation
        • R(j);
  • Actual
    • Q(E);
    • Threat
      • QAB1(E),XB(g)
    • Vars
      • R(j);SBLOCK::S(H)
      • B(g);N_SPINR(d),OGATE,P_SPINS(h)::R1(F)
      • B(g);OGATE,P_SPINS(h)::QAR1(E)
      • S(h);N_GUARD,N_SPINR(d),P_SPINB(g),S_CUTR(d)::QAR2(E)
      • S(h);N_GUARD,P_SPINB(g),S_CUTR(j)::R(F)
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