MESON Chess Problem Database

Problem Display
PID: 121598 (5bq1/6P1/3p4/8/p2P2PN/R3P2k/2Q2PN1/3B3K w - - 0 1)

Velimirovic, Milan

5th HM., The Problemist, 1978/II

5bq1/6P1/3p4/8/p2P2PN/R3P2k/2Q2PN1/3B3K

#2

11 + 5

14475 Mat Plus Review 2007
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh7
      • 2.e4#
    • 1...Qxg7
      • 2.e4#
    • 1...Qh8
      • 2.e4#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Sg1#
        • 2.Sg5#
      • 1...Qxg7
        • 2.Sg1#
      • 1...Qd5
        • 2.Sg1#
      • 1...Be7
        • 2.Sg1#
      • 1...Kxg4!
    • 1.Sg6?
      • threat
        • 2.S2f4#
        • 2.S6f4#
      • 1...Qd5
        • 2.Sf4#
      • 1...Qf7!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Sf4#
      • 1...Qxh7
        • 2.e4#
      • 1...Qd5
        • 2.Sf5#
      • 1...Qf7
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(e);N_GUARD::R(F)+P(G)
    • Q(e);N_GUARD,XP(K)::R(F)+P(G)
  • Tries
    • Try
      • S(J);
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);XP(K)::S(J)
        • Q(e);::S(J)
        • B(d);::S(J)
      • Refutation
        • K(a);S_FLIGHT,XP(I)
    • Try
      • S(J);
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);P_PINS(E)::S(J)
      • Refutation
        • Q(e);
  • Actual
    • Q(C);
    • Threat
      • S(E)
    • Vars
      • Q(e);N_GUARD,XQ(C)::R(F)+P(G)
      • Q(e);N_GUARD,P_PINS(E)::QAR(C)+S(J)
      • Q(e);N_GUARD::QAR(C)+S(J)
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