MESON Chess Problem Database

Problem Display
PID: 221837 (8/3pr3/pQp5/1PN2p2/3kbP2/pPNP1p2/1B1P1P2/4K3 w - - 0 1)

Colaneri, Bruno

StrateGems, 2020

8/3pr3/pQp5/1PN2p2/3kbP2/pPNP1p2/1B1P1P2/4K3

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd3+
      • 2.Se6#
    • 1...Bd5+
      • 2.Se2#
    • 1...d5
      • 2.Se2#
  • Tries
    • 1.S5xe4+?
      • 1...c5
        • 2.Qd6#
      • 1...Kxd3!
    • 1.Sxa6+?
      • 1...Kxd3
        • 2.Sb4#
      • 1...c5!
  • Keys
    • 1.bxa6!
      • threat
        • 2.Qb4#
      • 1...Bxd3+
        • 2.Se6#
      • 1...Bd5+
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • B(d);CHECK,SBLOCK,XP(G)::QAB(K)+S(J),DCHECK
    • B(d);CHECK,SBLOCK::B(B)+S(F),DCHECK
    • P(h);SBLOCK::B(B)+S(F),DCHECK
  • Tries
    • Try
      • S(J);CHECK,P_SPINS(J),XB(d)
      • Vars
        • P(g);OGATE,P_SPINP(g)::QAR2(K)
      • Refutation
        • K(c);P-FLIGHT,XP(G)
    • Try
      • S(J);CHECK,XP(f)
      • Vars
        • K(c);P-FLIGHT,XP(G)::S(J)
      • Refutation
        • P(g);P_SPINP(g)
  • Actual
    • P(I);XP(f)
    • Threat
      • QAR2(K)
    • Vars
      • B(d);CHECK,SBLOCK,XP(G)::QAB(K)+S(J),DCHECK
      • B(d);CHECK,SBLOCK::B(B)+S(F),DCHECK
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