MESON Chess Problem Database

Problem Display
PID: 18076 (8/8/1P6/r2P4/p1k2P2/P5QR/2B1N3/1KR5 w - - 0 1)

Hartong, Jan

1st Prize, Die Schwalbe TT, 1953

8/8/1P6/r2P4/p1k2P2/P5QR/2B1N3/1KR5

#2

10 + 3

3105 FIDE Album (1945-1955) 1964

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5+
      • 2.Bb3#
    • 1...Rc5
      • 2.Qd3#
    • 1...Rxd5
      • 2.Bxa4#
  • Tries
    • 1.Bd3+?
      • 1...Kb3
        • 2.Bc4#
        • 2.Be4#
        • 2.Bb5#
        • 2.Bf5#
        • 2.Ba6#
        • 2.Bg6#
        • 2.Bh7#
        • 2.Rc3#
      • 1...Kxd5!
    • 1.Bf5+?
      • 1...Kxd5
        • 2.Qd3#
      • 1...Kb5!
  • Keys
    • 1.Qg6!
      • 1...Rb5+
        • 2.Bb3#
      • 1...Kb5
        • 2.Bd3#
      • 1...Kc5
        • 2.Qc6#
      • 1...Kxd5
        • 2.Be4#
      • 1...Rxd5
        • 2.Bxa4#
      • 1...Rc5
        • 2.Qd3#
      • 1...Ra6
        • 2.Qc6#
      • 1...Ra7
        • 2.Qc6#
      • 1...Ra8
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(c);CHECK,SBLOCK::R(B)+B(C),DCHECK
    • R(c);SBLOCK::QAB1(F)
    • R(c);SBLOCK,XP(I)::R(B)+B(C),XP(a)
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • K(b);S_FLIGHT,XP(I)
    • Try
      • B(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(I)::QAR2(F)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • R(c);CHECK,SBLOCK::R(B)+B(C),DCHECK
      • K(b);S_FLIGHT::B(C)
      • K(b);P-FLIGHT::QAR1(F)
      • K(b);S_FLIGHT,XP(I)::B(C)
      • R(c);SBLOCK,XP(I)::R(B)+B(C),XP(a)
      • R(c);SBLOCK::QAB1(F)
      • R(c);N_GUARD::QAR2(F)
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