MESON Chess Problem Database

Problem Display
PID: 95851 (8/8/2R5/1qp5/2k5/4K3/P7/1QB5 w - - 0 1)

Ilincic, Borislav

Politika Meredith Ty., 1998

8/8/2R5/1qp5/2k5/4K3/P7/1QB5

#2

5 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qe4#
    • 1...Qa6
      • 2.Qb3#
    • 1...Qxc6
      • 2.Qb3#
    • 1...Qb3+
      • 2.Qxb3#
    • 1...Qb4
      • 2.Qd3#
    • 1...Qa5
      • 2.Qb3#
  • Tries
    • 1.Bd2?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Qb3+
        • 2.Qxb3#
      • 1...Kd5
        • 2.Qe4#
      • 1...Qxc6
        • 2.Qd3#
        • 2.Qb3#
      • 1...Qb2
        • 2.Qd3#
      • 1...Qb4
        • 2.Qd3#
      • 1...Qa4
        • 2.Qd3#
      • 1...Qa6
        • 2.Qd3#
        • 2.Qb3#
      • 1...Qa5
        • 2.Qd3#
        • 2.Qb3#
      • 1...Qb6
        • 2.Qd3#
      • 1...Qb7
        • 2.Qd3#
      • 1...Qb8
        • 2.Qd3#
      • 1...Qxb1!
    • 1.Qc2+?
      • 1...Kd5
        • 2.Qe4#
      • 1...Kb4!
    • 1.Qxb5+?
      • 1...Kc3
        • 2.Rxc5#
        • 2.Qb3#
        • 2.Qxc5#
      • 1...Kd5
        • 2.Qxc5#
      • 1...Kxb5!
  • Keys
    • 1.Ba3!
      • threat
        • 2.Qd3#
      • 1...Qb3+
        • 2.Qxb3#
      • 1...Kc3
        • 2.Qc1#
      • 1...Kd5
        • 2.Qe4#
      • 1...Qxb1
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • K(a);N_SPINP(c),S_FLIGHT::QAB1(A)
    • Q(b);N_GUARD::QAB1(A)
    • Q(b);N_GUARD,N_SPINP(c),XR(E)::QAB1(A)
    • Q(b);CHECK,N_GUARD::QAB1(A),XQ(b)
    • Q(b);SBLOCK::QAB1(A)
  • Tries
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);CHECK,N_GUARD::QAB1(A),XQ(b)
        • K(a);N_SPINP(c),S_FLIGHT::QAB1(A)
        • Q(b);::QAB1(A)
      • Refutation
        • Q(b);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);N_SPINP(c),S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT
    • Try
      • Q(A);CHECK,XQ(b)
      • Vars
        • K(a);S_FLIGHT::QAR1(A),XP(c)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT,XQ(A)
  • Actual
    • B(B);
    • Threat
      • QAB1(A)
    • Vars
      • Q(b);CHECK,N_GUARD::QAB1(A),XQ(b)
      • K(a);P-FLIGHT::QAR2(A)
      • K(a);N_SPINP(c),S_FLIGHT::QAB1(A)
      • Q(b);N_GUARD,XQ(A)::R1(E),XP(c)
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