MESON Chess Problem Database

Problem Display
PID: 168290 (5R2/3RN3/1p2B3/4b3/2PPkPp1/1Q3n1n/1N4r1/K4b2 w - - 0 1)

Petite, Efren

Sachove umeni (Ceskoslovensky sach), 1996

5R2/3RN3/1p2B3/4b3/2PPkPp1/1Q3n1n/1N4r1/K4b2

#2

10 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Re2
      • 2.Qd3#
    • 1...Bd3
      • 2.Qxd3#
    • 1...Bxd4
      • 2.Bd5#
    • 1...Bxf4
      • 2.Bf5#
    • 1...Sxd4
      • 2.Bd5#
    • 1...Sxf4
      • 2.Bf5#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qe3#
      • 1...Kxf4
        • 2.Qe3#
      • 1...Bxd4
        • 2.Sd6#
      • 1...Bxf4
        • 2.Bd5#
      • 1...Re2
        • 2.Sg3#
      • 1...Bd3!
    • 1.Qc2+?
      • 1...Ke3
        • 2.Sd1#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Rxc2!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qe3#
      • 1...Kxd4
        • 2.Qe3#
      • 1...Bxd4
        • 2.Bf5#
      • 1...Bxf4
        • 2.Sf6#
      • 1...Re2
        • 2.Qd3#
      • 1...Bd3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(b);S_CUTB(a)::QAB1(C)
    • B(a);N_GUARD::QAB1(C),XB(a)
    • B(g);P_PINS(B),SBLOCK,XP(E)::B(G)
    • B(g);SBLOCK,XP(F)::B(G)
    • S(c);SBLOCK,XP(E)::B(G)
    • S(d);SBLOCK,XP(F)::B(G)
  • Tries
    • Try
      • S(I);
      • Threat
        • QAR1(C)
      • Vars
        • K(e);P-FLIGHT,XP(F)::QAB1(C)
        • B(g);N_GUARD,P_PINS(B),SBLOCK,XP(E)::S(I)
        • B(g);SBLOCK,XP(F)::B(G)
        • R(b);N_GUARD::S(I)
      • Refutation
        • B(a);
    • Try
      • Q(C);CHECK
      • Vars
        • K(e);P-FLIGHT::S(B)
        • B(a);N_GUARD,P_SPINB(a)::QAB1(C),XB(a)
      • Refutation
        • R(b);XQ(C)
  • Actual
    • S(I);
    • Threat
      • QAR1(C)
    • Vars
      • K(e);P-FLIGHT,XP(E)::QAB1(C)
      • B(g);P_PINS(B),SBLOCK,XP(E)::B(G)
      • B(g);N_GUARD,SBLOCK,XP(F)::S(I)
      • R(b);S_CUTB(a)::QAB1(C)
      • B(a);N_GUARD::QAB1(C),XB(a)
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