MESON Chess Problem Database

Problem Display
PID: 7477 (2Q5/2N4B/b5q1/4b1R1/1p1kP1n1/1P6/K2PP3/3R4 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1990

2Q5/2N4B/b5q1/4b1R1/1p1kP1n1/1P6/K2PP3/3R4

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qh5
      • 2.Se6#
    • 1...Qxg5
      • 2.Se6#
    • 1...Qe6
      • 2.Sxe6#
    • 1...Qg7
      • 2.Se6#
  • Tries
    • 1.Se6+?
      • 1...Kxe4
        • 2.Qc6#
      • 1...Qxe6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qd5#
      • 1...Kxe4
        • 2.Rxg4#
      • 1...Kc5
        • 2.d4#
      • 1...Qxe4
        • 2.Qb6#
      • 1...Qxe6
        • 2.Sxe6#
      • 1...Qf7
        • 2.Qb6#
      • 1...Qg8
        • 2.Qb6#
      • 1...Bc4
        • 2.Qxc4#
      • 1...Bb7
        • 2.Qc4#
      • 1...Se3
        • 2.Qxe5#
      • 1...Sf6
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 3
  • Sets
    • Q(f);N_GUARD::S(H)
    • Q(f);N_GUARD,XR(G)::S(H)
    • Q(f);N_GUARD,P_PINP(E)::S(H),XQ(f)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINQ(f),XP(F)::QAB(J)
      • Refutation
        • Q(f);P_PINP(E),XS(H)
  • Actual
    • Q(J);
    • Threat
      • QAR1(J)
    • Vars
      • K(b);OGATEB,P-FLIGHT,P_SPINB(d),P_SPINQ(f),XP(F)::R(G),XS(c)
      • K(b);OGATE,P_SPINB(d),S_FLIGHT::P(C)
      • Q(f);N_GUARD,XP(F)::QAB(J)
      • Q(f);P_PINP(E),XQ(J)::S(H),XQ(f)
      • Q(f);N_GUARD::QAB(J)
      • B(e);N_GUARD,P_PINP(E)::QAR1(J),XB(e)
      • B(e);N_GUARD::QAR1(J)
      • S(c);N_GUARD::QAB1(J),XB(d)
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