MESON Chess Problem Database

Problem Display
PID: 18715 (5QB1/1N6/8/1p1rP1P1/3k2r1/6N1/1PP2K2/1n6 w - - 0 1)

Monreal, Pierre

Scotti, Louis

2nd Prize, The Problemist, 1957

5QB1/1N6/8/1p1rP1P1/3k2r1/6N1/1PP2K2/1n6

#2

9 + 5

3976 FIDE Album (1956-1958) 1961

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qc5#
    • 1...Kxe5
      • 2.Qf6#
    • 1...Rxg3
      • 2.Qf4#
    • 1...Rf4+
      • 2.Qxf4#
    • 1...Rxg5
      • 2.Qf4#
    • 1...Rc5
      • 2.Qxc5#
    • 1...Rxe5
      • 2.Qb4#
    • 1...Rd6
      • 2.Qxd6#
    • 1...Rd7
      • 2.Qc5#
    • 1...Rd8
      • 2.Qc5#
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qxd5#
      • 1...Kc4
        • 2.Qxg4#
      • 1...Kxe5
        • 2.Qf6#
      • 1...Rxe5
        • 2.Qd3#
      • 1...Re4
        • 2.Qxe4#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Rc5
        • 2.Qe3#
      • 1...Rd6
        • 2.Qe3#
      • 1...Rd7
        • 2.Qe3#
      • 1...Rd8
        • 2.Qe3#
      • 1...Sc3
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 6
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(b);P-FLIGHT,P_SPINR(e)::QAR1(H)
    • K(b);OGATEB,S_FLIGHT,XP(E)::QAB1(H)
    • R(c);N_GUARD,XS(D)::QAR2(H)
    • R(c);CHECK,N_GUARD::QAR2(H),XR(c)
    • R(c);N_GUARD,XP(F)::QAR2(H)
    • R(e);N_GUARD::QAB1(H),XR(e)
    • R(e);SBLOCK,XP(E)::QAR2(H)
    • R(e);OGATEB::QAR2(H),XR(e)
    • R(e);N_GUARD::QAB1(H)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H),XR(e)
    • Vars
      • K(b);P-FLIGHT,P_SPINR(e)::QAR(H),XR(c)
      • K(b);OGATEB,S_FLIGHT,XP(E)::QAB1(H)
      • R(e);SBLOCK,XP(E)::QAR1(H)
      • R(c);N_GUARD::QAR1(H),XR(c)
      • R(c);N_GUARD,P_PINQ(H)::QAR2(H),XR(c)
      • R(e);::QAB1(H)
      • S(a);N_GUARD::QAB1(H),XS(a)
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