MESON Chess Problem Database

Problem Display
PID: 173975 (8/b1Q5/1B3p2/2N2p2/n4R2/r3k2K/b1Ppp1B1/8 w - - 0 1)

Bottacchi, Antonio

Western Daily Mercury, 1920

(First published on Fri Mar 5 1920)

8/b1Q5/1B3p2/2N2p2/n4R2/r3k2K/b1Ppp1B1/8

#2

7 + 9

6490 yacpdb 2018
15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bb8
      • 2.Sxa4#
  • Tries
    • 1.Sd3+?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sxb6
        • 2.Qc5#
      • 1...Bxb6!
    • 1.Se6+?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sxb6
        • 2.Qc5#
      • 1...Bxb6!
    • 1.Re4+?
      • 1...Kf2+
        • 2.Sd3#
      • 1...fxe4!
  • Keys
    • 1.Rf2!
      • threat
        • 2.Qf4#
      • 1...Kxf2+
        • 2.Sd3#
      • 1...Kd4+
        • 2.Sb3#
      • 1...Bb8
        • 2.Sxa4#
      • 1...f4
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(i);N_GUARD::B(F)+S(E),XS(f)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::QAB(G),XS(f)
        • S(f);N_GUARD,XB(F)::QAB(G)
      • Refutation
        • B(i);XB(F)
    • Try
      • S(E);CHECK
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::QAB(G),XS(f)
        • S(f);N_GUARD,XB(F)::QAB(G)
      • Refutation
        • B(i);XB(F)
    • Try
      • R(D);CHECK
      • Vars
        • K(e);CHECK,S_FLIGHT::B(F)+S(E),DCHECK
      • Refutation
        • P(g);XR(D)
  • Actual
    • R(D);
    • Threat
      • QAB1(G)
    • Vars
      • K(e);CHECK,S_FLIGHT,XR(D)::B(F)+S(E),DCHECK
      • K(e);CHECK,S_FLIGHT::B(F)+S(E),DCHECK
      • B(i);N_GUARD::B(F)+S(E),XS(f)
      • P(g);::QAB1(G),XP(g)
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