MESON Chess Problem Database

Problem Display
PID: 16726 (1K2B1N1/1p2N2p/4k3/R3B3/4b3/4Q3/4q3/4R3 w - - 0 1)

Buglos, Janos

1st Prize, Radio Ujsag, 1942

1K2B1N1/1p2N2p/4k3/R3B3/4b3/4Q3/4q3/4R3

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qb6#
    • 1...Bh1
      • 2.Qh6#
    • 1...Bc2
      • 2.Qb6#
    • 1...Bg2
      • 2.Qh6#
    • 1...Bd3
      • 2.Qb6#
    • 1...Bf3
      • 2.Qh6#
    • 1...Bf5
      • 2.Qb6#
    • 1...Bc6
      • 2.Qh6#
    • 1...Bg6
      • 2.Qb6#
  • Tries
    • 1.Qb3+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Qc4!
    • 1.Qh3+?
      • 1...Bf5
        • 2.Qxf5#
      • 1...Qg4!
  • Keys
    • 1.Bc7!
      • threat
        • 2.Re5#
      • 1...Qb5
        • 2.Qh6#
      • 1...Qh5
        • 2.Qb6#
      • 1...Qb2
        • 2.Qh3#
      • 1...Qh2
        • 2.Qb3#
      • 1...b5
        • 2.Ra6#

There are these versions: 99069

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 9
  • Sets
    • B(b);N_GUARD::QAR(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAB1(B),XB(b)
      • Refutation
        • Q(a);P_SPINQ(a)
    • Try
      • Q(B);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAB1(B),XB(b)
      • Refutation
        • Q(a);P_SPINQ(a)
  • Actual
    • B(D);P_PINB(b)
    • Threat
      • R1(C)
    • Vars
      • Q(a);::QAR(B)
      • Q(a);N_GUARD::QAB(B)
      • Q(a);N_GUARD,P_PINB(D)::QAB(B)
      • P(d);N_GUARD,S_CUTQ(a)::R(C)
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