MESON Chess Problem Database

Problem Display
PID: 243366 (Q7/1B6/8/1K3p2/3P1p2/6bb/3PkNnR/2B4R w - - 0 1)

Aschenazi, Marcel

Revista Romana de Sah, 1956

Q7/1B6/8/1K3p2/3P1p2/6bb/3PkNnR/2B4R

#2

9 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Qe8#
    • 1...Se3
      • 2.Bf3#
    • 1...Sh4
      • 2.Qe8#
  • Tries
    • 1.Qa3?
      • threat
        • 2.Qf3#
      • 1...Kxf2
        • 2.Qf3#
      • 1...Se1
        • 2.Qe7#
      • 1...Se3
        • 2.Qd3#
      • 1...Sh4
        • 2.Qe7#
        • 2.Qd3#
      • 1...f3
        • 2.Qxf3#
      • 1...Bg4!
    • 1.Qe8+?
      • 1...Kxf2
        • 2.Qe1#
      • 1...Se3!
    • 1.d3?
      • threat
        • 2.Qa2#
      • 1...Kxf2
        • 2.Qa2#
      • 1...Se1
        • 2.Qe8#
      • 1...Se3
        • 2.Bf3#
      • 1...Bxf2!
  • Keys
    • 1.Qa2!
      • threat
        • 2.d3#
      • 1...Kxf2
        • 2.d3#
      • 1...Bxf2
        • 2.Qc4#
      • 1...Se1
        • 2.Qe6#
      • 1...Se3
        • 2.dxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(b);N_GUARD::QAR(I)
    • S(b);::B(H)
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAB1(I)
      • Vars
        • K(a);P-FLIGHT,P_SPINS(b),XS(D)::QAR1(I)
        • S(b);N_GUARD::QAR(I)
        • S(b);::QAB1(I)
        • P(e);::QAB1(I),XP(e)
      • Refutation
        • B(d);
    • Try
      • Q(I);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT,P_SPINS(b),XS(D)::QAB1(I)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • P(C);
      • Threat
        • QAR(I)
      • Vars
        • K(a);P-FLIGHT,P_SPINS(b),XS(D)::QAR(I)
        • S(b);N_GUARD::QAR(I)
        • S(b);::B(H)
      • Refutation
        • B(c);XS(D)
  • Actual
    • Q(I);
    • Threat
      • QAR(I)+P(C)
    • Vars
      • K(a);P-FLIGHT,P_SPINS(b),XS(D)::QAR(I)+P(C)
      • B(c);SBLOCK,XS(D)::QAB(I)
      • S(b);N_GUARD::QAR(I)
      • S(b);OGATE::QAR(I)+P(C),XS(b)
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