MESON Chess Problem Database

Problem Display
PID: 120821 (8/8/3K2B1/2p1ppB1/3k4/5Q2/8/8 w - - 0 1)

Orsini, Emilio

Fanfulla da Lodi, 1886-1888

8/8/3K2B1/2p1ppB1/3k4/5Q2/8/8

#2

4 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qe3#
    • 1...f4
      • 2.Qd3#
  • Tries
    • 1.Bd2?
      • threat
        • 2.Qd5#
      • 1...e4
        • 2.Qc3#
      • 1...Kc4!
    • 1.Bf6?
      • 1...c4
        • 2.Bxe5#
      • 1...f4
        • 2.Qd3#
      • 1...Kc4!
    • 1.Qe2?
      • 1...e4
        • 2.Bf6#
      • 1...c4
        • 2.Qe3#
      • 1...f4
        • 2.Qd3#
      • 1...Kc3!
    • 1.Qc3+?
      • 1...Ke4
        • 2.Qe3#
      • 1...Kxc3!
  • Keys
    • 1.Qb3!
      • 1...Ke4
        • 2.Qd5#
        • 2.Qe3#
      • 1...e4
        • 2.Be3#
        • 2.Bf6#
      • 1...c4
        • 2.Qe3#
      • 1...f4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAB1(A)
    • P(d);::QAR1(A)
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR1(A)
      • Vars
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);P_PINP(c)
      • Vars
        • P(b);SBLOCK::B(B),XP(c)
        • P(d);::QAR1(A)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(c);OGATEB::B(B)
        • P(b);SBLOCK::QAB1(A)
        • P(d);::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(d)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
  • Actual
    • Q(A);
    • Vars
      • P(b);SBLOCK::QAB1(A)
      • P(d);::QAR1(A)
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