MESON Chess Problem Database

Problem Display
PID: 263429 (B1n1Q3/4B1p1/4NP2/1N2kbK1/Rr2Pp2/1q3p2/3PR3/8 w - - 0 1)

Uris, Miguel

64 Shakhmatnoe obozrenie, 2022

B1n1Q3/4B1p1/4NP2/1N2kbK1/Rr2Pp2/1q3p2/3PR3/8

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.exf5#
    • 1...Sb6
      • 2.Bd6#
    • 1...Sd6
      • 2.Bxd6#
    • 1...Sa7
      • 2.Bd6#
    • 1...gxf6+
      • 2.Bxf6#
  • Tries
    • 1.Sed4?
      • threat
        • 2.Bd6#
      • 1...gxf6+
        • 2.Bxf6#
      • 1...Sxe7
        • 2.Qb8#
      • 1...Qe6
        • 2.Sxf3#
      • 1...Be6
        • 2.Sc6#
      • 1...Sd6
        • 2.Bxd6#
      • 1...Rxb5!
    • 1.Sc5?
      • threat
        • 2.Bd6#
      • 1...gxf6+
        • 2.Bxf6#
      • 1...Rxb5
        • 2.d4#
      • 1...Sxe7
        • 2.Qb8#
      • 1...Qe6
        • 2.Sd3#
      • 1...Sd6
        • 2.Bxd6#
      • 1...Be6!
    • 1.Sf8?
      • threat
        • 2.Bd6#
      • 1...gxf6+
        • 2.Bxf6#
      • 1...Rxb5
        • 2.d4#
      • 1...Sxe7
        • 2.Qb8#
      • 1...Be6
        • 2.Sg6#
      • 1...Sd6
        • 2.Bxd6#
      • 1...Qe6!
    • 1.d4+?
      • 1...Kxe6
        • 2.Sc7#
        • 2.exf5#
      • 1...Rxd4!
  • Keys
    • 1.Sxf4!
      • threat
        • 2.Bd6#
      • 1...gxf6+
        • 2.Bxf6#
      • 1...Rxb5
        • 2.d4#
      • 1...Sxe7
        • 2.Qb8#
      • 1...Qe6
        • 2.Sd3#
      • 1...Be6
        • 2.Sg6#
      • 1...Sd6
        • 2.Bxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • K(e);P-FLIGHT,XS(G)::R(B)+P(D)DCHECK,XB(f)
    • S(h);N_GUARD::B(I)
    • S(h);N_GUARD::B(I),XS(h)
    • P(g);CHECK,OGATE,XP(H)::B(I),XP(g)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAR(K)+B(I),DCHECK
      • Vars
        • P(g);CHECK,OGATE,XP(H)::QAR(K)+B(I),DCHECK,XP(g)
        • S(h);OGATE,P_SPINS(h),XB(I)::QAB(K)
        • Q(a);N_GUARD,SBLOCK::S(G),XP(b)
        • B(f);SBLOCK::S(G)
        • S(h);::QAR(K)+B(I),DCHECK,XS(h)
      • Refutation
        • R(c);XS(E)
    • Try
      • S(G);
      • Threat
        • QAR(K)+B(I),DCHECK
      • Vars
        • P(g);CHECK,OGATE,XP(H)::QAR(K)+B(I),DCHECK,XP(g)
        • R(c);N_GUARD,XS(E)::P(A)
        • S(h);OGATE,P_SPINS(h),XB(I)::QAB(K)
        • Q(a);N_GUARD,SBLOCK::S(G)
        • S(h);::QAR(K)+B(I),DCHECK,XS(h)
      • Refutation
        • B(f);
    • Try
      • S(G);
      • Threat
        • QAR(K)+B(I),DCHECK
      • Vars
        • P(g);CHECK,OGATE,XP(H)::QAR(K)+B(I),DCHECK,XP(g)
        • R(c);N_GUARD,XS(E)::P(A)
        • S(h);OGATE,P_SPINS(h),XB(I)::QAB(K)
        • B(f);N_GUARD,SBLOCK::S(G)
        • S(h);::QAR(K)+B(I),DCHECK,XS(h)
      • Refutation
        • Q(a);
    • Try
      • P(A);CHECK
      • Refutation
        • R(c);XP(A)
  • Actual
    • S(G);XP(d)
    • Threat
      • QAR(K)+B(I),DCHECK
    • Vars
      • P(g);CHECK,OGATE,XP(H)::QAR(K)+B(I),DCHECK,XP(g)
      • R(c);N_GUARD,XS(E)::P(A)
      • S(h);OGATE,P_SPINS(h),XB(I)::QAB(K)
      • Q(a);N_GUARD,SBLOCK::S(G)
      • B(f);N_GUARD,SBLOCK::S(G)
      • S(h);::QAR(K)+B(I),DCHECK,XS(h)
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