MESON Chess Problem Database

Problem Display
PID: 278047 (r7/8/2Nppq2/3kPP1Q/1PR5/1P3Pp1/3p2K1/R7 w - - 0 1)

Abad, Jose Miguel

Pat a Mat, 2024

r7/8/2Nppq2/3kPP1Q/1PR5/1P3Pp1/3p2K1/R7

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5
      • 2.Se7#
    • 1...Ra5
      • 2.Rxa5#
    • 1...Rc8
      • 2.Ra5#
    • 1...Rd8
      • 2.Ra5#
    • 1...Re8
      • 2.Ra5#
    • 1...Rf8
      • 2.Ra5#
    • 1...Rg8
      • 2.Ra5#
    • 1...Rh8
      • 2.Ra5#
    • 1...d1Q
      • 2.Rxd1#
    • 1...d1S
      • 2.Rxd1#
    • 1...d1B
      • 2.Rxd1#
    • 1...d1R
      • 2.Rxd1#
  • Tries
    • 1.Se7+?
      • 1...Kxe5
        • 2.Re4#
        • 2.f4#
      • 1...Qxe7!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Rd4#
      • 1...Qxe5
        • 2.Se7#
      • 1...Rxe8
        • 2.Ra5#
      • 1...dxe5
        • 2.Qd7#
      • 1...d1Q
        • 2.Rxd1#
      • 1...d1R
        • 2.Rxd1#
      • 1...Qh4
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(f);N_GUARD,SBLOCK,XP(G)::S(J)
    • R(g);N_GUARD::R(A),XR(g)
    • R(g);N_GUARD::R(A)
    • P(a);OGATEB::R(A),XQ(a)
    • P(a);OGATEB::R(A),XS(a)
    • P(a);OGATEB::R(A),XB(a)
    • P(a);OGATEB::R(A),XR(a)
  • Tries
    • Try
      • S(J);CHECK
      • Refutation
        • Q(f);XS(J)
  • Actual
    • Q(I);
    • Threat
      • R1(F)
    • Vars
      • Q(f);N_GUARD,SBLOCK,XP(G)::S(J)
      • R(g);N_GUARD,XQ(I)::R(A)
      • P(d);OGATEB,XP(G)::QAR2(I)
      • P(a);OGATEB::R(A),XQ(a)
      • P(a);OGATEB::R(A),XR(a)
      • Q(f);N_GUARD::QAB1(I),XP(e)
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Developed and maintained by Brian Stephenson.
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