MESON Chess Problem Database

Problem Display
PID: 15913 (6Bn/7N/1p2NPRn/1q3k1K/r3pBpb/4p3/4Q3/2rR4 w - - 0 1)

Sovik, Stefan

2nd Prize, Hlas l'udu, 1989

6Bn/7N/1p2NPRn/1q3k1K/r3pBpb/4p3/4Q3/2rR4

#2

9 + 11

702 Phenix 1990
4827 FIDE Album (1989-1991) 1997
230 Sachove umeni (Ceskoslovensky sach) 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe2
      • 2.Rd5#
    • 1...Qa6
      • 2.Rd5#
    • 1...Qe8
      • 2.Rd5#
    • 1...Qb1
      • 2.Rd5#
    • 1...Qb4
      • 2.Rd5#
    • 1...Qd5
      • 2.Rxd5#
    • 1...Rca1
      • 2.Qxb5#
    • 1...Be1
      • 2.Rg5#
    • 1...Bf2
      • 2.Rg5#
    • 1...Bg3
      • 2.Rg5#
    • 1...Bg5
      • 2.Rxg5#
    • 1...Bxf6
      • 2.Rxf6#
    • 1...S6f7
      • 2.Qxg4#
    • 1...Sxg8
      • 2.Qxg4#
  • Tries
    • 1.Rf1?
      • threat
        • 2.Sg7#
      • 1...Rxf1
        • 2.Qxb5#
      • 1...Bxf6
        • 2.Rxf6#
      • 1...Rc7
        • 2.Bg3#
      • 1...Ra7
        • 2.Sd4#
      • 1...Bf2
        • 2.Rg5#
      • 1...Qd7!
    • 1.Rxh6?
      • threat
        • 2.Qxg4#
      • 1...Qxe2
        • 2.Rd5#
      • 1...g3
        • 2.Qg4#
      • 1...Qe8+!
    • 1.Qf1?
      • threat
        • 2.Sg7#
      • 1...Qxf1
        • 2.Rd5#
      • 1...Bxf6
        • 2.Rxf6#
      • 1...Qd7
        • 2.Bg3#
      • 1...Ra7
        • 2.Sd4#
      • 1...Bf2
        • 2.Rg5#
      • 1...Rc7!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Sg7#
      • 1...Bxg3
        • 2.Rg5#
      • 1...Bxf6
        • 2.Rxf6#
      • 1...Qd7
        • 2.Qf1#
      • 1...Rc7
        • 2.Rf1#
      • 1...Ra7
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 12
  • Sets
    • Q(g);N_GUARD,XQ(B)::R(A)
    • Q(g);N_GUARD::R(A)
    • Q(g);N_GUARD,P_PINR(G)::R(A)
    • Q(g);N_GUARD::R(A),XQ(g)
    • R(a);N_GUARD::QAR(B),XQ(g)
    • B(f);N_GUARD::R1(G)
    • B(f);N_GUARD::R1(G),XB(f)
    • B(f);OGATE,XP(F)::R1(G),XB(f)
    • S(j);N_GUARD::QAB1(B),XP(e)
    • S(j);N_GUARD,XB(I)::QAB1(B),XP(e)
  • Tries
    • Try
      • R(A);
      • Threat
        • S(E)
      • Vars
        • R(a);N_GUARD,XR(A)::QAR(B),XQ(g)
        • B(f);OGATE,XP(F)::R1(G),XB(f)
        • R(a);N_GUARD::R(A)+B(C)
        • R(c);N_GUARD::S(E)
        • B(f);N_GUARD::R1(G)
      • Refutation
        • Q(g);
    • Try
      • R(G);XS(j)
      • Threat
        • QAB1(B),XP(e)
      • Vars
        • Q(g);N_GUARD,XQ(B)::R(A)
        • P(e);::QAB1(B)
      • Refutation
        • Q(g);CHECK
    • Try
      • Q(B);
      • Threat
        • S(E)
      • Vars
        • Q(g);N_GUARD,XQ(B)::R(A)
        • B(f);OGATE,XP(F)::R1(G),XB(f)
        • Q(g);N_GUARD::QAR(B)+B(C)
        • R(c);N_GUARD::S(E)
        • B(f);N_GUARD::R1(G)
      • Refutation
        • R(a);
  • Actual
    • B(C);
    • Threat
      • S(E)
    • Vars
      • B(f);N_GUARD,XB(C)::R1(G)
      • B(f);OGATE,XP(F)::R1(G),XB(f)
      • Q(g);N_GUARD::QAR(B)
      • R(a);N_GUARD::R(A)
      • R(c);N_GUARD::S(E)
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