MESON Chess Problem Database

Problem Display
PID: 165027 (5Q2/3p2P1/1NRbp1P1/1bB1kB2/5pK1/3p1P2/4n3/2n1R3 w - - 0 1)

Mariani, Stefano

Best Problems, 2017

5Q2/3p2P1/1NRbp1P1/1bB1kB2/5pK1/3p1P2/4n3/2n1R3

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...exf5+
      • 2.Qxf5#
  • Tries
    • 1.Bxd3?
      • threat
        • 2.Qxf4#
      • 1...Sxd3
        • 2.Rxe2#
      • 1...Bxf8!
    • 1.Be4?
      • threat
        • 2.Sxd7#
      • 1...Bxc6
        • 2.Sc4#
      • 1...dxc6
        • 2.Sd7#
      • 1...Bxc5!
    • 1.Rxd6?
      • threat
        • 2.Bd4#
      • 1...exf5+
        • 2.Qxf5#
      • 1...Sb3!
  • Keys
    • 1.Bxe6!
      • threat
        • 2.Qf5#
      • 1...Kxe6
        • 2.Qxd6#
      • 1...Bxc5
        • 2.Qxf4#
      • 1...Bxf8
        • 2.Sxd7#
      • 1...dxe6
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(h);CHECK,OGATE,XB(E)::QAR1(J),XP(h)
  • Tries
    • Try
      • B(E);XP(c)
      • Threat
        • QAB1(J),XP(d)
      • Vars
        • S(a);N_GUARD,XB(E)::R(A),XS(b)
      • Refutation
        • B(g);XQ(J)
    • Try
      • B(E);N_PINS(b)
      • Threat
        • S(F),XP(i)
      • Vars
        • B(e);N_GUARD,XR(G)::S(F)
        • P(i);XR(G)::S(F)
      • Refutation
        • B(g);XB(D)
    • Try
      • R(G);XB(g)
      • Threat
        • B(D)
      • Vars
        • P(h);CHECK,OGATE,XB(E)::QAR1(J),XP(h)
      • Refutation
        • S(a);
  • Actual
    • B(E);XP(h)
    • Threat
      • QAR1(J)
    • Vars
      • K(f);P-FLIGHT,P_SPINB(g),XB(E)::QAR1(J),XB(g)
      • B(g);XB(D)::QAB1(J),XP(d)
      • B(g);XQ(J)::S(F),XP(i)
      • P(i);SBLOCK,XB(E)::QAB1(J),XP(d)
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