MESON Chess Problem Database

Problem Display
PID: 203453 (1BK5/1Q1B1p1b/8/b2R1P2/p3k3/r7/3P2P1/8 w - - 0 1)

Nield, Joshua

Brisbane Courier, 1924

1BK5/1Q1B1p1b/8/b2R1P2/p3k3/r7/3P2P1/8

#2

8 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf5
      • 2.Bxf5#
  • Tries
    • 1.Rxa5+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kd3!
    • 1.Rb5+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kd3!
    • 1.Rc5+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kd3!
    • 1.Qb1+?
      • 1...Rd3
        • 2.Qxd3#
      • 1...Kxd5!
  • Keys
    • 1.Bc6!
      • threat
        • 2.Qe7#
      • 1...Bxf5+
        • 2.Rd7#
      • 1...Bc7
        • 2.Qb4#
      • 1...Bc3
        • 2.Qb1#
      • 1...Bb4
        • 2.Qxb4#
      • 1...Bd8
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(f);OGATE,P_PINB(F),XP(D)::B(F),XB(f)
  • Tries
    • Try
      • R(C);CHECK,XB(d)
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::QAB1(E),XR(a)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
  • Actual
    • B(F);
    • Threat
      • QAR(E)
    • Vars
      • B(f);CHECK,SBLOCK,XP(D)::B(F)+R(C)
      • B(d);N_GUARD::QAR(E)
      • B(d);S_CUTR(a)::QAB(E)
      • B(d);N_GUARD::QAR(E),XB(d)
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