MESON Chess Problem Database

Problem Display
PID: 133015 (B7/5Q2/1pNPN3/rPB4K/p1k2P1p/3pp3/bP1n4/2r5 w - - 0 1)

Marysko, Milos

The Field, 1960

(First published on Thu Jan 14 1960)

B7/5Q2/1pNPN3/rPB4K/p1k2P1p/3pp3/bP1n4/2r5

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Sxa5#
    • 1...bxc5
      • 2.Sed4#
      • 2.Sc7#
  • Tries
    • 1.Bb4?
      • threat
        • 2.Sed4#
        • 2.Sc7#
      • 1...Rxb5+
        • 2.Sc5#
      • 1...Kxb5
        • 2.Sc7#
      • 1...Kd5
        • 2.Sg5#
      • 1...Ra7
        • 2.Sc7#
      • 1...Kb3!
  • Keys
    • 1.Ba3!
      • threat
        • 2.Sed4#
        • 2.Sc7#
      • 1...Rxb5+
        • 2.Sc5#
      • 1...Kb3
        • 2.Sed4#
      • 1...Kxb5
        • 2.Sc7#
      • 1...Kd5
        • 2.Sg5#
      • 1...Ra7
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(g);S_FLIGHT::B(J)+S(F),XR(i)
  • Tries
    • Try
      • B(D);P_SPINP(C)
      • Threat
        • DUALS(2)
      • Vars
        • R(i);CHECK,SBLOCK,XP(C)::QAB(I)+S(H)
        • K(g);S_FLIGHT,XP(C)::S(H)
        • K(g);N_PINP(C),S_FLIGHT::QAB(I)+S(H)
        • R(i);N_PINP(C)::QAB(I)+S(H)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • B(D);P_SPINP(C)
    • Threat
      • DUALS(2)
    • Vars
      • R(i);CHECK,SBLOCK,XP(C)::QAB(I)+S(H)
      • K(g);S_FLIGHT::QAB(I)+S(H),DCHECK
      • K(g);S_FLIGHT,XP(C)::S(H)
      • K(g);N_PINP(C),S_FLIGHT::QAB(I)+S(H)
      • R(i);N_PINP(C)::QAB(I)+S(H)
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