MESON Chess Problem Database

Problem Display
PID: 108536 (K2N4/3p3B/1B1pr3/3k4/2p1NP2/2pq4/5Q2/4R3 w - - 0 1)

Kapros, Jorge Marcelo

Stosic MT, 1979

K2N4/3p3B/1B1pr3/3k4/2p1NP2/2pq4/5Q2/4R3

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Sxc3#
      • 2.Qd4#
    • 1...Qf1
      • 2.Sxc3#
      • 2.Qd4#
    • 1...Qc2
      • 2.Qd4#
    • 1...Qe2
      • 2.Sxc3#
      • 2.Qd4#
    • 1...Qd1
      • 2.Sxc3#
      • 2.Rxd1#
    • 1...Qf3
      • 2.Qd4#
    • 1...Qg3
      • 2.Qd4#
    • 1...Qh3
      • 2.Qd4#
    • 1...Qd4
      • 2.Qxd4#
    • 1...Re5
      • 2.Sf6#
    • 1...Rf6
      • 2.Sxf6#
    • 1...Re7
      • 2.Sf6#
    • 1...Re8
      • 2.Sf6#
  • Tries
    • 1.Bg8?
      • threat
        • 2.Sf6#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Qxe4!
    • 1.Rd1?
      • threat
        • 2.Sxc3#
      • 1...c2
        • 2.Sc3#
      • 1...Rxe4!
    • 1.Qf3?
      • threat
        • 2.Sxc3#
        • 2.Sf6#
      • 1...Qxe4
        • 2.Rd1#
      • 1...Rxe4
        • 2.Bg8#
      • 1...Rf6
        • 2.Sxc3#
        • 2.Sxf6#
      • 1...c2
        • 2.Sc3#
        • 2.Sf6#
      • 1...Qxf3!
  • Keys
    • 1.Qg2!
      • threat
        • 2.Sxc3#
        • 2.Sf6#
      • 1...Qxe4
        • 2.Rd1#
      • 1...Rxe4
        • 2.Bg8#
      • 1...Qf3
        • 2.Sxc3#
      • 1...Rf6
        • 2.Sxc3#
        • 2.Sxf6#
      • 1...c2
        • 2.Sc3#
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(b);N_GUARD::QAR1(B)
    • Q(b);N_GUARD::QAR1(B),XQ(b)
    • R(f);N_GUARD::S(C)
    • R(f);N_GUARD::S(C),XR(f)
    • R(f);N_GUARD,P_PINS(H)::S(C)
  • Tries
    • Try
      • B(F);P_PINR(f)
      • Threat
        • S(C)
      • Vars
        • Q(b);N_GUARD::QAR1(B),XQ(b)
      • Refutation
        • Q(b);XS(C)
    • Try
      • R(A);P_PINQ(b)
      • Threat
        • S(C),XP(a)
      • Vars
        • P(a);::S(C)
      • Refutation
        • R(f);XS(C)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);OGATEB,P_SPINQ(b),XS(C)::R(A)
        • R(f);OGATEB,P_SPINR(f),XS(C)::B(F)
      • Refutation
        • Q(b);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • Q(b);OGATEB,P_SPINQ(b),XS(C)::R(A)
      • R(f);OGATEB,P_SPINR(f),XS(C)::B(F)
      • Q(b);::S(C),XP(a)
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