MESON Chess Problem Database

Problem Display
PID: 103788 (3RB2B/pb5K/p4Np1/2p5/P1k2nPp/Q1npR2r/4P1N1/8 w - - 0 1)

Taliani, Alfonso

Praca, 1955

3RB2B/pb5K/p4Np1/2p5/P1k2nPp/Q1npR2r/4P1N1/8

#2

11 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3
      • 2.Sxe3#
    • 1...Scd5
      • 2.Re4#
    • 1...Sxg2
      • 2.exd3#
    • 1...Sh5
      • 2.exd3#
    • 1...Se6
      • 2.exd3#
    • 1...dxe2
      • 2.Qxc3#
    • 1...d2
      • 2.Qxc3#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Qxc3#
      • 1...Scxe2
        • 2.Qa2#
      • 1...Sxa4
        • 2.Re4#
        • 2.Qa2#
        • 2.Qxa4#
      • 1...Scxd5
        • 2.Re4#
      • 1...Sfxd5
        • 2.exd3#
      • 1...Sb1
        • 2.Re4#
        • 2.Qa2#
      • 1...Sd1
        • 2.Re4#
        • 2.Qa2#
      • 1...Sa2
        • 2.Re4#
        • 2.Qxa2#
      • 1...Se4
        • 2.Rxe4#
        • 2.Qa2#
      • 1...Sb5
        • 2.Qa2#
      • 1...Sfxe2!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Se5#
      • 1...Kd5
        • 2.Sb6#
        • 2.Qxc5#
      • 1...Rxe3
        • 2.Sxe3#
      • 1...Bd5
        • 2.Qxc3#
      • 1...Scd5
        • 2.Re4#
      • 1...Sfd5
        • 2.exd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(c);XR(D)::S(B),XR(c)
    • S(a);N_GUARD,S_CUTB(k)::R(D)
    • S(e);N_GUARD,XS(B)::P(A),XP(b)
    • S(e);N_GUARD::P(A),XP(b)
    • P(b);XP(A)::QAR1(C),XS(a)
    • P(b);::QAR1(C),XS(a)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAR1(C),XS(a)
      • Vars
        • S(a);N_GUARD,XP(A)::QAB(C)
        • S(a);N_GUARD,XS(G)::R(D)
        • S(e);N_GUARD,XS(G)::P(A),XP(b)
        • S(a);N_GUARD::QAB(C)
      • Refutation
        • S(e);XP(A)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • R(c);XR(D)::S(B),XR(c)
      • B(k);SBLOCK::QAR1(C),XS(a)
      • S(a);N_GUARD,SBLOCK,S_CUTB(k)::R(D)
      • S(e);N_GUARD,SBLOCK::P(A),XP(b)
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Developed and maintained by Brian Stephenson.
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