MESON Chess Problem Database

Problem Display
PID: 114290 (8/2pp4/K2B4/1N1P4/1pkP4/1p1p1B2/1Pp2P2/6QR w - - 0 1)

Agostini, Valerio

Boletim da UBP, 1984

8/2pp4/K2B4/1N1P4/1pkP4/1p1p1B2/1Pp2P2/6QR

#2

10 + 7

6490 yacpdb 2009
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...c1Q
      • 2.Qxc1#
    • 1...c1S
      • 2.Qxc1#
    • 1...c1B
      • 2.Qxc1#
    • 1...c1R
      • 2.Qxc1#
    • 1...d2
      • 2.Qf1#
  • Tries
    • 1.Sa3+?
      • 1...Kxd4
        • 2.Rh4#
        • 2.Qg4#
        • 2.Qg7#
      • 1...bxa3!
    • 1.Bc5?
      • 1...d2
        • 2.Qf1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1S
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...c6
        • 2.Sd6#
      • 1...d6!
    • 1.Be5?
      • 1...d2
        • 2.Qf1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1S
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...c5
        • 2.Sd6#
      • 1...c6
        • 2.Sd6#
      • 1...d6!
    • 1.Bxc7?
      • 1...d2
        • 2.Qf1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1S
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...d6!
    • 1.Rh4?
      • 1...cxd6
        • 2.Sxd6#
      • 1...d2
        • 2.Qf1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1S
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...c5
        • 2.dxc5#
      • 1...c6!
  • Keys
    • 1.Qg8!
      • 1...cxd6
        • 2.Qc8#
      • 1...d2
        • 2.Be2#
      • 1...c1Q
        • 2.Rxc1#
      • 1...c1S
        • 2.Rxc1#
      • 1...c1B
        • 2.Rxc1#
      • 1...c1R
        • 2.Rxc1#
      • 1...c5
        • 2.dxc5 ep#
      • 1...c6
        • 2.dxc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::QAR(A),XQ(a)
    • P(a);OGATEB::QAR(A),XS(a)
    • P(a);OGATEB::QAR(A),XB(a)
    • P(a);OGATEB::QAR(A),XR(a)
    • P(c);OGATEB::QAB(A)
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • P(d);XS(G)
    • Try
      • B(J);
      • Vars
        • P(c);OGATEB::QAB(A)
        • P(a);OGATEB::QAR(A),XQ(a)
        • P(a);OGATEB::QAR(A),XS(a)
        • P(a);OGATEB::QAR(A),XB(a)
        • P(a);OGATEB::QAR(A),XR(a)
        • P(f);N_GUARD::S(G)
      • Refutation
        • P(g);
    • Try
      • B(J);
      • Vars
        • P(c);OGATEB::QAB(A)
        • P(a);OGATEB::QAR(A),XQ(a)
        • P(a);OGATEB::QAR(A),XS(a)
        • P(a);OGATEB::QAR(A),XB(a)
        • P(a);OGATEB::QAR(A),XR(a)
        • P(f);N_GUARD::S(G)
      • Refutation
        • P(g);
    • Try
      • B(J);XP(f)
      • Vars
        • P(c);OGATEB::QAB(A)
        • P(a);OGATEB::QAR(A),XQ(a)
        • P(a);OGATEB::QAR(A),XS(a)
        • P(a);OGATEB::QAR(A),XB(a)
        • P(a);OGATEB::QAR(A),XR(a)
      • Refutation
        • P(g);
    • Try
      • R(B);
      • Vars
        • P(f);XB(J)::S(G),XP(f)
        • P(c);OGATEB::QAB(A)
        • P(a);OGATEB::QAR(A),XQ(a)
        • P(a);OGATEB::QAR(A),XS(a)
        • P(a);OGATEB::QAR(A),XB(a)
        • P(a);OGATEB::QAR(A),XR(a)
        • P(f);OGATE::R(B)+P(F),XP(f)
      • Refutation
        • P(f);
  • Actual
    • Q(A);
    • Vars
      • P(f);OGATEB,XB(J)::QAR(A)
      • P(c);OGATEB::B(E)
      • P(a);OGATEB::R(B),XQ(a)
      • P(a);OGATEB::R(B),XS(a)
      • P(a);OGATEB::R(B),XB(a)
      • P(a);OGATEB::R(B),XR(a)
      • P(f);OGATE::QAB(A)+P(H),XP(f),EP
      • P(f);OGATE::QAB(A)+P(H),XP(f)
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