MESON Chess Problem Database

Problem Display
PID: 148173 (1n1Q1b1r/2pP1p2/nPNkrR1p/N3p3/1pP5/7B/8/5KB1 w - - 0 1)

Salardini, Erio

Chess, 1955

1n1Q1b1r/2pP1p2/nPNkrR1p/N3p3/1pP5/7B/8/5KB1

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf6+
      • 2.Qxf6#
    • 1...Be7
      • 2.Qxe7#
    • 1...Bg7
      • 2.Qe7#
    • 1...Sc5
      • 2.Qxc7#
    • 1...Sxc6
      • 2.Sb7#
  • Tries
    • 1.Sa7?
      • threat
        • 2.Sb7#
        • 2.Sb5#
        • 2.Sc8#
      • 1...Rxf6+
        • 2.Qxf6#
      • 1...Sc5
        • 2.Sb5#
        • 2.Sc8#
      • 1...c6
        • 2.Sb7#
        • 2.Sc8#
      • 1...e4!
    • 1.Bc5+?
      • 1...Sxc5
        • 2.Qxc7#
      • 1...Kxc5!
    • 1.Bxe6?
      • threat
        • 2.Bh3#
        • 2.Bg4#
        • 2.Bd5#
        • 2.Bf5#
        • 2.Bxf7#
      • 1...Be7
        • 2.Qxe7#
      • 1...Bg7
        • 2.Qe7#
      • 1...Sc5
        • 2.Qxc7#
      • 1...fxe6!
    • 1.Rf3?
      • threat
        • 2.Rd3#
      • 1...Sxc6
        • 2.Sb7#
      • 1...Rf6
        • 2.Rxf6#
        • 2.Qxf6#
      • 1...Sc5
        • 2.Qxc7#
      • 1...e4!
    • 1.Qxf8+?
      • 1...Kxd7
        • 2.Sxe5#
        • 2.Rxf7#
      • 1...Rxf8!
  • Keys
    • 1.Rf2!
      • threat
        • 2.Rd2#
      • 1...Kc5
        • 2.Rd2#
      • 1...Sxc6
        • 2.Sb7#
      • 1...Rf6
        • 2.Rxf6#
      • 1...Sc5
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(e);CHECK,N_SPINR(e),OGATE,XR(H)::QAR2(J),XR(e)
    • B(j);N_GUARD::QAB1(J),XB(j)
    • B(j);N_GUARD::QAB1(J)
    • S(c);N_GUARD::QAB1(J),XP(g)
    • S(i);SBLOCK,XS(G)::S(E)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(3)
      • Vars
        • R(e);CHECK,N_SPINR(e),OGATE,XR(H)::QAR2(J),XR(e)
      • Refutation
        • P(b);
    • Try
      • B(B);CHECK
      • Vars
        • S(c);SBLOCK,XB(B)::QAB1(J),XP(g)
      • Refutation
        • K(d);N_SPINR(e),S_FLIGHT,XB(B)
    • Try
      • B(C);XR(e)
      • Threat
        • DUALS(5)
      • Vars
        • B(j);N_GUARD::QAB1(J),XB(j)
        • B(j);N_GUARD::QAB1(J)
        • S(c);N_GUARD::QAB1(J),XP(g)
      • Refutation
        • P(h);P_SPINP(h),XB(C)
    • Try
      • R(H);N_PINR(e)
      • Threat
        • R(H)
      • Vars
        • S(i);SBLOCK,XS(G)::S(E)
        • S(c);N_GUARD::QAB1(J),XP(g)
      • Refutation
        • P(b);
    • Try
      • Q(J);CHECK,XB(j)
      • Refutation
        • R(k);XQ(J)
  • Actual
    • R(H);N_PINR(e)
    • Threat
      • R(H)
    • Vars
      • K(d);S_FLIGHT::B(B)+R(H)
      • S(i);SBLOCK,XS(G)::S(E)
      • R(e);OGATEB,P_PINR(H)::R(H),XR(e)
      • S(c);N_GUARD,SBLOCK::QAB1(J),XP(g)
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