MESON Chess Problem Database

Problem Display
PID: 142446 (8/n1B4B/3Pp3/2Pp3R/QRrkPN1K/P4P2/bP1N1P2/1n6 w - - 0 1)

Guida, Marco

5th Comm., The Problemist, 2011

8/n1B4B/3Pp3/2Pp3R/QRrkPN1K/P4P2/bP1N1P2/1n6

#2

15 + 7

56 The Problemist 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Sxe6#
    • 1...Bb3
      • 2.Sxb3#
  • Tries
    • 1.Rb3?
      • threat
        • 2.Sxe6#
      • 1...Kxc5
        • 2.Sxe6#
        • 2.Qxc4#
      • 1...Bxb3
        • 2.Sxb3#
      • 1...e5
        • 2.Se6#
      • 1...Sc3!
    • 1.Rxc4+?
      • 1...Bxc4
        • 2.Sb3#
      • 1...dxc4!
    • 1.Qc2?
      • threat
        • 2.Sxe6#
      • 1...e5
        • 2.Se6#
      • 1...Kxc5!
    • 1.Qb3?
      • threat
        • 2.Sxe6#
        • 2.Qe3#
      • 1...Kxc5
        • 2.Rxc4#
      • 1...Bxb3
        • 2.Sxb3#
      • 1...e5
        • 2.Se6#
        • 2.Qe3#
      • 1...Sc3!
    • 1.exd5?
      • threat
        • 2.Sxe6#
      • 1...Kxc5
        • 2.Qxa7#
      • 1...exd5
        • 2.Se6#
        • 2.Rxd5#
      • 1...e5!
    • 1.c6?
      • threat
        • 2.Bb6#
        • 2.Qxa7#
      • 1...Kc5
        • 2.Sxe6#
      • 1...Rxb4
        • 2.Bb6#
      • 1...Sxc6
        • 2.Bb6#
      • 1...Sb5
        • 2.Bb6#
      • 1...Sc8!
  • Keys
    • 1.e5!
      • threat
        • 2.Sxe6#
      • 1...Kxc5
        • 2.Bb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(d);N_SPINR(c),P_SPINP(e),S_FLIGHT,XP(K)::S(I),XP(f)
    • B(b);N_GUARD::S(B),XB(b)
  • Tries
    • Try
      • R(G);
      • Threat
        • S(I),XP(f)
      • Vars
        • B(b);XR(G)::S(B),XB(b)
        • P(f);::S(I)
      • Refutation
        • S(a);
    • Try
      • R(G);CHECK,XR(c)
      • Vars
        • B(b);P_SPINB(b),XR(G)::S(B)
      • Refutation
        • P(e);P_SPINP(e),XR(G)
    • Try
      • Q(F);
      • Threat
        • S(I),XP(f)
      • Vars
        • P(f);::S(I)
      • Refutation
        • K(d);P_SPINP(e),S_FLIGHT,XP(K)
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);N_SPINR(c),P_SPINP(e),S_FLIGHT,XP(K)::R1(G),XR(c)
        • B(b);XQ(F)::S(B),XB(b)
      • Refutation
        • S(a);
    • Try
      • P(H);XP(e)
      • Threat
        • S(I),XP(f)
      • Vars
        • K(d);N_SPINR(c),OGATEB,P_PINS(I),S_FLIGHT,XP(K)::QAB(F),XS(g)
      • Refutation
        • P(f);
    • Try
      • P(K);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);N_SPINR(c),P_SPINP(e),S_FLIGHT::S(I),XP(f)
        • R(c);XR(G)::B(N)
        • S(g);XP(K)::B(N)
        • S(g);::B(N)
      • Refutation
        • S(g);
  • Actual
    • P(H);
    • Threat
      • S(I),XP(f)
    • Vars
      • K(d);N_SPINR(c),OGATEB,P_PINS(I),S_FLIGHT,XP(K)::B(N)
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