MESON Chess Problem Database

Problem Display
PID: 95624 (1R4b1/8/8/2Q5/8/r1pk2N1/p7/R1B1K3 w Q - 0 1)

Armeni, Alberto

L'Italia Scacchistica, 1993

1R4b1/8/8/2Q5/8/r1pk2N1/p7/R1B1K3

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc2
      • 2.Qf5#
  • Tries
    • 1.Be3?
      • threat
        • 2.0-0-0#
      • 1...Kc2
        • 2.Qf5#
      • 1...c2
        • 2.Qd4#
      • 1...Bb3!
    • 1.Qe3+?
      • 1...Kc2
        • 2.Qe2#
        • 2.Qe4#
      • 1...Kc4!
    • 1.Qd4+?
      • 1...Kc2
        • 2.Qd1#
        • 2.Qe4#
      • 1...Kxd4!
    • 1.Qd6+?
      • 1...Kc2
        • 2.Qd1#
        • 2.Qg6#
      • 1...Kc4
        • 2.Rb4#
      • 1...Bd5!
    • 1.Qd5+?
      • 1...Kc2
        • 2.Qe4#
        • 2.Qd1#
        • 2.Qf5#
      • 1...Bxd5!
  • Keys
    • 1.Bb2!
      • threat
        • 2.0-0-0#
      • 1...Kc2
        • 2.Qf5#
      • 1...cxb2
        • 2.Rd1#
      • 1...Bb3
        • 2.Qxc3#
      • 1...c2
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);P_SPINP(c),S_FLIGHT::QAB(E)
  • Tries
    • Try
      • B(B);
      • Threat
        • 0-0-0
      • Vars
        • K(d);P_SPINP(c),S_FLIGHT::QAB(E)
        • P(c);SBLOCK::QAR1(E)
      • Refutation
        • B(e);
    • Try
      • Q(E);CHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(d);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);S_FLIGHT::R1(F)
      • Refutation
        • B(e);P_SPINB(e)
    • Try
      • Q(E);CHECK
      • Refutation
        • B(e);XQ(E)
  • Actual
    • B(B);
    • Threat
      • 0-0-0
    • Vars
      • K(d);P_SPINP(c),S_FLIGHT::QAB(E)
      • P(c);XB(B)::R(A)
      • B(e);S_CUTR(b)::QAR1(E),XP(c)
      • P(c);SBLOCK::QAR1(E)
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