MESON Chess Problem Database

Problem Display
PID: 162319 (5N1K/2pp1P1p/1np2R2/3k2P1/1P1B1PP1/2bBPP2/7Q/q7 w - - 0 1)

Ben-Zvi, Yoav

The Problemist, 2016

5N1K/2pp1P1p/1np2R2/3k2P1/1P1B1PP1/2bBPP2/7Q/q7

#2

13 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd4
      • 2.e4#
    • 1...Sc4
      • 2.Be4#
    • 1...d6
      • 2.Rf5#
  • Tries
    • 1.Qa2+?
      • 1...Sc4
        • 2.Bxc4#
        • 2.Be4#
        • 2.Qxc4#
      • 1...Qxa2!
    • 1.Qh5?
      • threat
        • 2.g6#
      • 1...Bxd4
        • 2.e4#
      • 1...Sc4
        • 2.Be4#
      • 1...Qh1!
    • 1.Qxh7?
      • threat
        • 2.Qe4#
        • 2.Qf5#
      • 1...Bxd4
        • 2.Qe4#
        • 2.e4#
      • 1...Sc4
        • 2.Be4#
        • 2.Qe4#
      • 1...Qh1!
    • 1.f5?
      • threat
        • 2.Qe5#
      • 1...Bxd4
        • 2.e4#
      • 1...Sc4
        • 2.Be4#
      • 1...d6!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Rf5#
      • 1...Bxd4
        • 2.e4#
      • 1...Sc4
        • 2.Be4#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • B(b);P_PINR(J),SBLOCK,XB(F)::P(C)
    • S(d);SBLOCK::B(B)
    • P(g);SBLOCK::R(J)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • Q(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR(A)+P(I)
      • Vars
        • B(b);P_PINR(J),SBLOCK,XB(F)::P(C)
        • S(d);SBLOCK::B(B)
      • Refutation
        • Q(a);
    • Try
      • Q(A);XP(h)
      • Threat
        • DUALS(2)
      • Refutation
        • Q(a);P_PINQ(A)
    • Try
      • P(G);
      • Threat
        • QAR1(A)
      • Vars
        • B(b);P_PINR(J),SBLOCK,XB(F)::P(C)
        • S(d);SBLOCK::B(B)
      • Refutation
        • P(g);
  • Actual
    • Q(A);
    • Threat
      • R(J)
    • Vars
      • B(b);P_PINR(J),SBLOCK,XB(F)::P(C)
      • S(d);SBLOCK::B(B)
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