MESON Chess Problem Database

Problem Display
PID: 198314 (4N3/5n2/p3NP1p/R3P2K/1pP1k1P1/1P1ppp2/6p1/6Q1 w - - 0 1)

Padulli, Giuseppe

Lo Scacchistica di Roma, 1920

4N3/5n2/p3NP1p/R3P2K/1pP1k1P1/1P1ppp2/6p1/6Q1

#2

10 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe5
      • 2.Sd6#
    • 1...Sg5
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sd8
      • 2.Sd6#
    • 1...Sh8
      • 2.Sd6#
    • 1...d2
      • 2.Qb1#
    • 1...e2
      • 2.Qd4#
    • 1...f2
      • 2.Qxg2#
  • Tries
    • 1.Kh4?
      • 1...Sxe5
        • 2.Sd6#
      • 1...d2
        • 2.Qb1#
      • 1...f2
        • 2.Qxg2#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sd8
        • 2.Sd6#
      • 1...Sh8
        • 2.Sd6#
      • 1...e2
        • 2.Qd4#
      • 1...h5!
    • 1.Rc5?
      • 1...Sxe5
        • 2.Sd6#
      • 1...d2
        • 2.Qb1#
      • 1...f2
        • 2.Qxg2#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sd8
        • 2.Sd6#
      • 1...Sh8
        • 2.Sd6#
      • 1...e2
        • 2.Qd4#
      • 1...a5!
    • 1.Rd5?
      • 1...Sxe5
        • 2.Sd6#
        • 2.Rd4#
      • 1...f2
        • 2.Qxg2#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sd8
        • 2.Sd6#
      • 1...Sh8
        • 2.Sd6#
      • 1...d2
        • 2.Qb1#
      • 1...e2
        • 2.Qd4#
      • 1...a5!
  • Keys
    • 1.Sc5+!
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf4
        • 2.Qh2#
      • 1...Kxe5
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • S(i);N_GUARD,XP(F)::S(J)
    • S(i);N_GUARD::S(J)
    • S(i);N_GUARD::S(J),XS(i)
    • P(b);OGATEB::QAB(A)
    • P(c);OGATE::QAR1(A)
    • P(d);OGATEB::QAB(A),XP(a)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Vars
        • S(i);N_GUARD,XP(F)::S(J)
        • P(b);OGATEB::QAB(A)
        • P(d);OGATEB::QAB(A),XP(a)
        • S(i);N_GUARD::S(J)
        • S(i);N_GUARD::S(J),XS(i)
        • P(c);OGATE::QAR1(A)
      • Refutation
        • P(h);
    • Try
      • R(E);
      • Vars
        • S(i);N_GUARD,XP(F)::S(J)
        • P(b);OGATEB::QAB(A)
        • P(d);OGATEB::QAB(A),XP(a)
        • S(i);N_GUARD::S(J)
        • S(i);N_GUARD::S(J),XS(i)
        • P(c);OGATE::QAR1(A)
      • Refutation
        • P(g);
    • Try
      • R(E);
      • Vars
        • P(d);OGATEB::QAB(A),XP(a)
        • S(i);N_GUARD::S(J)
        • S(i);N_GUARD::S(J),XS(i)
        • P(b);OGATEB::QAB(A)
        • P(c);OGATE::QAR1(A)
      • Refutation
        • P(g);
  • Actual
    • S(H);CHECK
    • Vars
      • K(f);P-FLIGHT,P_SPINP(c)::QAB(A)
      • K(f);P-FLIGHT::QAB(A)
      • K(f);P-FLIGHT,XP(F)::QAR2(A),XP(c)
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