MESON Chess Problem Database

Problem Display
PID: 174951 (3N1B2/4N1n1/2Rp1n2/P5p1/3k1pP1/P2Pp3/1P1R3Q/5BK1 w - - 0 1)

Mantelli, Ugo

Nuova Rivista degli Scacchi, 1901

3N1B2/4N1n1/2Rp1n2/P5p1/3k1pP1/P2Pp3/1P1R3Q/5BK1

#2

13 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Rc4#
  • Tries
    • 1.Sf7?
      • threat
        • 2.Rc4#
      • 1...exd2
        • 2.Qf2#
      • 1...e2
        • 2.Qf2#
      • 1...d5!
    • 1.Rxd6+?
      • 1...Ke5
        • 2.Sec6#
        • 2.Sg6#
        • 2.Sf7#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Kc5!
    • 1.Qxf4+?
      • 1...Se4
        • 2.Bxg7#
        • 2.Rc4#
        • 2.Qxe4#
      • 1...gxf4!
  • Keys
    • 1.Rc5!
      • 1...Kxc5
        • 2.d4#
      • 1...Sxg4
        • 2.Rd5#
      • 1...exd2
        • 2.Qf2#
      • 1...dxc5
        • 2.Sdc6#
      • 1...Sd5
        • 2.Rxd5#
      • 1...e2
        • 2.Qf2#
      • 1...d5
        • 2.Sec6#
      • 1...Se4
        • 2.Rd5#
      • 1...Sfh5
        • 2.Rd5#
      • 1...Sd7
        • 2.Rd5#
      • 1...Sh7
        • 2.Rd5#
      • 1...Sfe8
        • 2.Rd5#
      • 1...Sg8
        • 2.Rd5#
      • 1...Sf5
        • 2.Se6#
      • 1...Sgh5
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sge8
        • 2.Se6#
      • 1...f3
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 17
    • REMOVED MATES = 0
  • Sets
    • P(c);::R1(J)
  • Tries
    • Try
      • S(L);
      • Threat
        • R1(J)
      • Vars
        • P(a);OGATEB,XR(D)::QAB(E)
        • P(a);OGATEB::QAB(E)
      • Refutation
        • P(e);
    • Try
      • R(J);CHECK,XP(e)
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::R1(J),XS(f)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK,XP(c)
      • Refutation
        • P(d);XQ(E)
  • Actual
    • R(J);
    • Vars
      • K(b);OGATE,S_FLIGHT,XR(J)::P(G)
      • S(f);N_GUARD,XP(H)::R1(J)
      • P(a);OGATEB,XR(D)::QAB(E)
      • P(e);SBLOCK,XR(J)::S(L)
      • S(f);N_GUARD::R1(J),XS(f)
      • P(a);OGATEB::QAB(E)
      • P(e);::S(K)
      • S(f);N_GUARD::R1(J)
      • S(g);N_GUARD::S(L)
      • S(g);N_GUARD::S(L),XS(g)
      • P(c);::R1(J)
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