MESON Chess Problem Database

Problem Display
PID: 95378 (3R4/8/R7/1Q2pq2/1b2N3/4rk2/3PpNbB/4K3 w - - 0 1)

Kapros, Jorge Marcelo

Sachsische Zeitung, 1992

3R4/8/R7/1Q2pq2/1b2N3/4rk2/3PpNbB/4K3

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Sg5#
    • 1...Qe6
      • 2.Sg5#
    • 1...Qd7
      • 2.Sg5#
    • 1...Qh7
      • 2.Sg5#
    • 1...Qc8
      • 2.Sg5#
    • 1...Qg5
      • 2.Sxg5#
    • 1...Qf6
      • 2.Rxf6#
    • 1...Qf7
      • 2.Sg5#
    • 1...Qf8
      • 2.Sg5#
    • 1...Ra3
      • 2.Qxe2#
    • 1...Rb3
      • 2.Qxe2#
    • 1...Rc3
      • 2.Qxe2#
    • 1...Rd3
      • 2.Rxd3#
      • 2.Qxd3#
    • 1...Bxd2+
      • 2.Sxd2#
  • Tries
    • 1.Qc6?
      • threat
        • 2.Sg5#
      • 1...Bxd2+
        • 2.Sxd2#
      • 1...Rxe4
        • 2.Rd3#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Qxe4!
    • 1.Qd5?
      • threat
        • 2.Sg5#
      • 1...Bxd2+
        • 2.Sxd2#
      • 1...Qxe4
        • 2.Rf6#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Rxe4!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Sg5#
      • 1...Bxd2+
        • 2.Sxd2#
      • 1...Qxe4
        • 2.Rf6#
      • 1...Rxe4
        • 2.Rd3#
      • 1...Qg5
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 11
  • Sets
    • Q(g);N_GUARD::S(E)
    • Q(g);N_GUARD::S(E),XQ(g)
    • Q(g);OGATEB::R(G),XQ(g)
    • R(c);N_GUARD::QAB1(F),XP(a)
    • R(c);N_GUARD,N_PINP(B)::QAB1(F),XP(a)
    • B(e);CHECK,XP(B)::S(E),XB(e)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB(F)+S(E),DCHECK
      • Vars
        • B(e);CHECK,XP(B)::QAB(F)+S(E),DCHECK,XB(e)
        • R(c);OGATEB,P_SPINR(c),XS(E)::R(H)
        • Q(g);::QAB(F)+S(E),DCHECK,XQ(g)
      • Refutation
        • Q(g);P_SPINQ(g),XS(E)
    • Try
      • Q(F);
      • Threat
        • QAB(F)+S(E),DCHECK
      • Vars
        • B(e);CHECK,XP(B)::QAB(F)+S(E),DCHECK,XB(e)
        • Q(g);OGATEB,P_SPINQ(g),XS(E)::R(G)
        • Q(g);::QAB(F)+S(E),DCHECK,XQ(g)
      • Refutation
        • R(c);P_SPINR(c),XS(E)
  • Actual
    • Q(F);
    • Threat
      • QAB(F)+S(E),DCHECK
    • Vars
      • B(e);CHECK,XP(B)::QAB(F)+S(E),DCHECK,XB(e)
      • Q(g);OGATEB,P_SPINQ(g),XS(E)::R(G)
      • R(c);OGATEB,P_SPINR(c),XS(E)::R(H)
      • Q(g);::QAB(F)+S(E),DCHECK,XQ(g)
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