MESON Chess Problem Database

Problem Display
PID: 7326 (3N1B2/5p1Q/7n/1ppkP1P1/1R1N4/5Pn1/4p3/4K2B w - - 0 1)

Petite, Efren

Vatarescu, Paul

Problemas, 1999

3N1B2/5p1Q/7n/1ppkP1P1/1R1N4/5Pn1/4p3/4K2B

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Qe4#
      • 2.f4#
    • 1...Sxh1
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sgf5
      • 2.f4#
    • 1...Sh5
      • 2.Qe4#
      • 2.f4#
  • Tries
    • 1.Qd3?
      • threat
        • 2.S4c6#
      • 1...Kxe5
        • 2.S4c6#
      • 1...cxd4
        • 2.Rxb5#
        • 2.Qxb5#
        • 2.Qxd4#
      • 1...Sgf5
        • 2.Qe4#
        • 2.f4#
      • 1...c4
        • 2.Rxb5#
      • 1...Shf5!
    • 1.Qxf7+?
      • 1...Kxe5
        • 2.S4c6#
        • 2.S8c6#
        • 2.f4#
      • 1...Sxf7!
    • 1.f4+?
      • 1...Se4
        • 2.Bxe4#
        • 2.Qxe4#
      • 1...Sxh1!
  • Keys
    • 1.S4c6!
      • threat
        • 2.Qd3#
      • 1...Se4
        • 2.Qxe4#
        • 2.fxe4#
      • 1...Sgf5
        • 2.f4#
      • 1...Shf5
        • 2.Qxf7#
      • 1...c4
        • 2.Rxb5#
      • 1...f5
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(b);N_GUARD,XB(B)::QAB1(H)
    • S(b);N_GUARD::QAB1(H),XS(b)
    • S(b);N_GUARD::B(B)+P(C)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAR(H)+S(E)
      • Vars
        • K(e);P-FLIGHT,XP(F)::S(E)
        • P(d);OGATEB::R(D),XP(c)
      • Refutation
        • S(f);
    • Try
      • Q(H);CHECK,XP(g)
      • Refutation
        • S(f);XQ(H)
    • Try
      • P(C);CHECK
      • Refutation
        • S(b);XB(B)
  • Actual
    • S(E);
    • Threat
      • QAR2(H)
    • Vars
      • S(b);N_GUARD::B(B)+P(C)
      • S(f);N_GUARD::QAB(H),XP(g)
      • P(d);OGATEB,SBLOCK::R(D),XP(c)
      • P(g);OGATE::QAR2(H)
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