MESON Chess Problem Database

Problem Display
PID: 243625 (4K3/8/B2R4/pp1P1p2/3k1B2/QpN2R2/1P1N4/2n2b2 w - - 0 1)

Balcu, Silviu

Revista Romana de Sah, 1955

4K3/8/B2R4/pp1P1p2/3k1B2/QpN2R2/1P1N4/2n2b2

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Sxb5#
    • 1...Bh3
      • 2.Sxb5#
    • 1...Se2
      • 2.Sxb5#
    • 1...Sd3
      • 2.Sxb5#
  • Tries
    • 1.Sxb3+?
      • 1...Kc4
        • 2.Bxb5#
        • 2.Rc6#
        • 2.Qa4#
      • 1...Sxb3!
    • 1.Be3+?
      • 1...Ke5
        • 2.Re6#
      • 1...Kd3!
    • 1.Rc6?
      • threat
        • 2.Qc5#
      • 1...Sd3
        • 2.Sxb3#
      • 1...b4!
    • 1.Qb4+?
      • 1...Bc4
        • 2.Sxb5#
      • 1...axb4!
  • Keys
    • 1.Re6!
      • threat
        • 2.Be5#
      • 1...b4
        • 2.Be3#
      • 1...Sd3
        • 2.Be3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(b);N_GUARD::S(D),XP(f)
    • S(a);S_CUTB(b)::S(D),XP(f)
  • Tries
    • Try
      • S(B);CHECK,XP(c)
      • Refutation
        • S(a);XS(B)
    • Try
      • B(F);CHECK
      • Vars
        • K(d);S_FLIGHT::R1(I)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(f)
    • Try
      • R(I);
      • Threat
        • QAB1(C)
      • Vars
        • S(a);N_GUARD::S(B),XP(c)
      • Refutation
        • P(f);
    • Try
      • Q(C);CHECK
      • Vars
        • B(b);P_SPINB(b)::S(D),XP(f)
      • Refutation
        • P(e);XQ(C)
  • Actual
    • R(I);
    • Threat
      • B(F)
    • Vars
      • P(f);::B(F)
      • S(a);SBLOCK::B(F)
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