MESON Chess Problem Database

Problem Display
PID: 164746 (7B/3r1p2/2B2N1R/8/1p1k1PQ1/1P6/2P2N2/3K4 w - - 0 1)

Pasqualini, Giuseppe

L'Italia Scacchistica, 1916

7B/3r1p2/2B2N1R/8/1p1k1PQ1/1P6/2P2N2/3K4

#2

10 + 4

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3+
      • 2.Sd5#
    • 1...Kc5+
      • 2.Sxd7#
  • Tries
    • 1.Sd5+?
      • 1...Kc5
        • 2.Sd3#
        • 2.Se4#
      • 1...f6!
    • 1.Sxd7+?
      • 1...Ke3
        • 2.Qf3#
        • 2.Qg3#
      • 1...f6!
    • 1.Qxd7+?
      • 1...Kc3
        • 2.S6e4#
        • 2.Sd5#
      • 1...Ke3
        • 2.Qd2#
      • 1...Kc5!
    • 1.f5+?
      • 1...Kc3+
        • 2.Sd5#
      • 1...Kc5+
        • 2.Sxd7#
      • 1...Ke5+
        • 2.Sxd7#
      • 1...Ke3+!
  • Keys
    • 1.Qg1!
      • threat
        • 2.S2e4#
      • 1...Kc3+
        • 2.Sd5#
      • 1...Ke3+
        • 2.Sd3#
      • 1...Kc5+
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);CHECK,S_FLIGHT::B(J)+S(H),DCHECK
    • K(b);CHECK,S_FLIGHT::S(H),XR(c)
  • Tries
    • Try
      • S(H);CHECK
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • S(H);CHECK,XR(c)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • Q(F);CHECK,XR(c)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(E);CHECK
      • Vars
        • K(b);CHECK,S_FLIGHT::B(J)+S(H),DCHECK
        • K(b);CHECK,S_FLIGHT::S(H),XR(c)
        • K(b);CHECK,S_FLIGHT::B(J)+S(H),DCHECK,XR(c)
      • Refutation
        • K(b);CHECK,S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAB(F)+S(C)
    • Vars
      • K(b);CHECK,S_FLIGHT::B(J)+S(H),DCHECK
      • K(b);CHECK,S_FLIGHT::QAB(F)+S(C)
      • K(b);CHECK,S_FLIGHT::S(H),XR(c)
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