MESON Chess Problem Database

Problem Display
PID: 136842 (4B1b1/p2nB2p/2pqp3/R1PkP2Q/3N4/1PpRpP2/1NK1P3/3nr3 w - - 0 1)

Haralovic, Mato

Liga Problemista, 1981/3

4B1b1/p2nB2p/2pqp3/R1PkP2Q/3N4/1PpRpP2/1NK1P3/3nr3

#2

13 + 12

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5
      • 2.Sb5#
    • 1...Qc7
      • 2.Sb5#
    • 1...Qb8
      • 2.Sb5#
    • 1...Rxe2+
      • 2.Sxe2#
    • 1...Sxc5
      • 2.Sxc6#
    • 1...Sxe5
      • 2.Sxc6#
    • 1...Sb6
      • 2.Sxc6#
    • 1...Sf6
      • 2.Sxc6#
    • 1...Sb8
      • 2.Sxc6#
    • 1...Sf8
      • 2.Sxc6#
  • Tries
    • 1.Sxd1?
      • threat
        • 2.Sxc3#
        • 2.Sxe3#
      • 1...Rxe2+
        • 2.Sxe2#
      • 1...Rxd1!
    • 1.Sa4?
      • threat
        • 2.Sb5#
      • 1...Rxe2+
        • 2.Sxe2#
      • 1...Sxc5
        • 2.Sxc6#
      • 1...Sb2
        • 2.Sxc3#
      • 1...Sf2
        • 2.Sxc3#
      • 1...Qxc5!
    • 1.cxd6+?
      • 1...Sc5
        • 2.Sxc6#
        • 2.Bxc6#
      • 1...c5!
    • 1.exd6+?
      • 1...Se5
        • 2.Sxc6#
        • 2.Bxc6#
      • 1...e5!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sf5#
      • 1...Rxe2+
        • 2.Sxe2#
      • 1...Qxe5
        • 2.Sb5#
      • 1...Sxe5
        • 2.Sxc6#
      • 1...Sb2
        • 2.Sxe3#
      • 1...Sf2
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(g);P_SPINQ(g),XP(J)::R(E)+S(G)
    • Q(g);::R(E)+S(G)
    • R(b);CHECK,XP(C)::R(E)+S(G),XR(b)
    • S(j);P_SPINS(j),XP(I)::R(E)+S(G),XP(f)
    • S(j);P_SPINS(j),XP(J)::R(E)+S(G),XP(f)
    • S(j);::R(E)+S(G),XP(f)
  • Tries
    • Try
      • S(A);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(b);CHECK,XP(C)::R(E)+S(G),XR(b)
      • Refutation
        • R(b);XS(A)
    • Try
      • S(A);
      • Threat
        • R(E)+S(G)
      • Vars
        • R(b);CHECK,XP(C)::R(E)+S(G),XR(b)
        • S(j);P_SPINS(j),XP(I)::R(E)+S(G),XP(f)
        • S(a);N_GUARD::S(A),XP(c)
      • Refutation
        • Q(g);P_SPINQ(g),XP(I)
    • Try
      • P(I);CHECK,XQ(g)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • P(J);CHECK,XQ(g)
      • Refutation
        • P(h);P_SPINP(h)
  • Actual
    • S(A);
    • Threat
      • R(E)+S(G)
    • Vars
      • R(b);CHECK,XP(C)::R(E)+S(G),XR(b)
      • Q(g);P_SPINQ(g),XP(J)::R(E)+S(G)
      • S(j);P_SPINS(j),XP(J)::R(E)+S(G),XP(f)
      • S(a);N_GUARD::S(A),XP(d)
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