MESON Chess Problem Database

Problem Display
PID: 280751 (8/QR2R3/2nP1p2/3p4/2bb1k1B/3P3B/1p2KN2/8 w - - 0 1)

Cabrera, Virginio

Zaragoza-65 JT (Problemas), 2025

8/QR2R3/2nP1p2/3p4/2bb1k1B/3P3B/1p2KN2/8

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd3+
      • 2.Sxd3#
    • 1...Bxf2
      • 2.Qxf2#
    • 1...Bc3
      • 2.Qe3#
    • 1...Be3
      • 2.Qxe3#
    • 1...Be5
      • 2.Qe3#
    • 1...Sb4
      • 2.Qxd4#
    • 1...Sa5
      • 2.Qxd4#
    • 1...Se5
      • 2.Qxd4#
    • 1...Sxe7
      • 2.Qxd4#
    • 1...Sb8
      • 2.Qxd4#
    • 1...Sd8
      • 2.Qxd4#
  • Tries
    • 1.Se4?
      • threat
        • 2.Bg3#
      • 1...dxe4
        • 2.Rxe4#
      • 1...Bf2
        • 2.Qxf2#
      • 1...Bxd3+!
    • 1.Bd7?
      • threat
        • 2.Sh3#
      • 1...Bxd3+
        • 2.Sxd3#
      • 1...Bxf2
        • 2.Qxf2#
      • 1...Sxe7
        • 2.Qxd4#
      • 1...f5!
    • 1.Bc8?
      • threat
        • 2.Sh3#
      • 1...Bxd3+
        • 2.Sxd3#
      • 1...Bxf2
        • 2.Qxf2#
      • 1...Sxe7
        • 2.Qxd4#
      • 1...f5!
  • Keys
    • 1.Re5!
      • threat
        • 2.Rf5#
      • 1...Bxd3+
        • 2.Sxd3#
      • 1...Kxe5
        • 2.Bg3#
      • 1...Bxe5
        • 2.Qe3#
      • 1...Sxe5
        • 2.Qxd4#
      • 1...fxe5
        • 2.Rf7#
      • 1...f5
        • 2.Rxf5#
      • 1...Se7
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • B(b);CHECK,XP(C)::S(B),XB(b)
    • B(c);OGATE,XS(B)::QAR2(G),XB(c)
    • B(c);OGATE::QAB1(G)
    • B(c);OGATE::QAB1(G),XB(c)
    • S(f);N_GUARD::QAR2(G),XB(c)
    • S(f);N_GUARD,XR(I)::QAR2(G),XB(c)
  • Tries
    • Try
      • S(B);
      • Threat
        • B(E)
      • Vars
        • P(e);OGATE,XS(B)::R1(I),XP(e)
        • B(c);OGATE::QAR2(G),XB(c)
      • Refutation
        • B(b);CHECK,XP(C)
    • Try
      • B(D);
      • Threat
        • S(B)
      • Vars
        • B(b);CHECK,XP(C)::S(B),XB(b)
        • B(c);OGATE,XS(B)::QAR2(G),XB(c)
        • S(f);N_GUARD,XR(I)::QAR2(G),XB(c)
      • Refutation
        • P(g);
    • Try
      • B(D);
      • Threat
        • S(B)
      • Vars
        • B(b);CHECK,XP(C)::S(B),XB(b)
        • B(c);OGATE,XS(B)::QAR2(G),XB(c)
        • S(f);N_GUARD,XR(I)::QAR2(G),XB(c)
      • Refutation
        • P(g);
  • Actual
    • R(I);
    • Threat
      • R1(I)
    • Vars
      • B(b);CHECK,XP(C)::S(B),XB(b)
      • K(d);N_GUARD,S_FLIGHT,XR(I)::B(E)
      • B(c);OGATE,XR(I)::QAB1(G)
      • S(f);N_GUARD,XR(I)::QAR2(G),XB(c)
      • P(g);OGATEB,SBLOCK,XR(I)::R(H)
      • P(g);::R1(I),XP(g)
      • S(f);N_GUARD::QAR2(G),XB(c)
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