MESON Chess Problem Database

Problem Display
PID: 202841 (8/5pN1/1pp2rp1/2P1k3/n4pP1/1B3K2/p2QP3/8 w - - 0 1)

Uris, Miguel

Sinfonie Scacchistiche, 2019

8/5pN1/1pp2rp1/2P1k3/n4pP1/1B3K2/p2QP3/8

#2

7 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Qd6#
    • 1...Rd6
      • 2.Qxf4#
      • 2.Qxd6#
    • 1...Re6
      • 2.Qxf4#
    • 1...Sb2
      • 2.Qc3#
      • 2.Qxb2#
    • 1...Sc3
      • 2.Qxc3#
  • Tries
    • 1.Se6?
      • threat
        • 2.Qd4#
        • 2.Qd6#
      • 1...Rxe6
        • 2.Qxf4#
      • 1...Sxc5
        • 2.Qd4#
      • 1...fxe6
        • 2.Qd6#
      • 1...Rf5
        • 2.Qd4#
      • 1...a1Q
        • 2.Qd6#
      • 1...a1B
        • 2.Qd6#
      • 1...bxc5!
    • 1.Qb2+?
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sxb2!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qxf4#
        • 2.Qd4#
      • 1...Rxf5
        • 2.Qd6#
      • 1...bxc5
        • 2.Qxf4#
      • 1...gxf5
        • 2.Qxf4#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Re6
        • 2.Qd4#
      • 1...a1Q
        • 2.Qxf4#
      • 1...a1B
        • 2.Qxf4#
      • 1...g5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(g);N_GUARD::QAB1(A)
    • R(g);N_GUARD::QAB1(A),XP(c)
    • S(b);N_GUARD::QAB(A),XS(b)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(g);N_GUARD,XS(G)::QAB1(A),XP(c)
        • S(b);XP(F)::QAB1(A)
        • P(i);XS(G)::QAB1(A)
        • R(g);::QAB1(A)
        • P(a);::QAB1(A)
      • Refutation
        • P(e);XP(F)
    • Try
      • Q(A);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB(A),XS(b)
      • Refutation
        • S(b);XQ(A)
  • Actual
    • S(G);
    • Threat
      • DUALS(2)
    • Vars
      • R(g);N_GUARD,XS(G)::QAB1(A)
      • P(e);XP(F)::QAB1(A),XP(c)
      • P(h);XS(G)::QAB1(A),XP(c)
      • R(g);N_GUARD::QAB1(A),XR(g)
      • R(g);::QAB1(A)
      • P(a);::QAB1(A),XP(c)
      • P(h);::QAB1(A)
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