MESON Chess Problem Database

Problem Display
PID: 193503 (3Q3n/b1p1N2B/1p2p1p1/8/pPk1N3/8/P2B1R2/6K1 w - - 0 1)

Guidelli, Giorgio

L'Illustrazione Italiana, 1915

3Q3n/b1p1N2B/1p2p1p1/8/pPk1N3/8/P2B1R2/6K1

#2

9 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kb5
      • 2.Qd3#
    • 1...e5
      • 2.Qd5#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Qd3#
      • 1...Kb5
        • 2.Qd3#
      • 1...bxc5!
    • 1.Rf3?
      • threat
        • 2.Qd3#
      • 1...Kb5
        • 2.Qd3#
      • 1...b5+!
    • 1.Qd4+?
      • 1...Kb5
        • 2.Qd3#
      • 1...Kxd4!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Sc3#
      • 1...b5+
        • 2.Sc5#
      • 1...Kb5
        • 2.Qd3#
      • 1...e5
        • 2.Qd5#
      • 1...g5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB(I)
    • P(d);N_GUARD::QAB1(I)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(I)
      • Vars
        • K(b);S_FLIGHT::QAB(I)
      • Refutation
        • P(c);XS(F)
    • Try
      • R(D);
      • Threat
        • QAB1(I)
      • Vars
        • K(b);S_FLIGHT::QAB(I)
      • Refutation
        • P(c);CHECK
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(I)
      • Refutation
        • K(b);P-FLIGHT,XQ(I)
  • Actual
    • R(D);
    • Threat
      • R(D)+S(F)
    • Vars
      • P(c);CHECK,SBLOCK::R(D)+S(F)
      • K(b);S_FLIGHT::QAB(I)
      • P(d);N_GUARD::QAB1(I)
      • P(e);::R(D)+S(F),DCHECK
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