MESON Chess Problem Database

Problem Display
PID: 107294 (8/1pR5/N3R1N1/3p4/P1PkP1P1/3b1p1q/K2Q1n1r/n5B1 w - - 0 1)

Kazimierz, S

Revista Romana de Sah, 1985

8/1pR5/N3R1N1/3p4/P1PkP1P1/3b1p1q/K2Q1n1r/n5B1

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Bxf2#
    • 1...dxc4
      • 2.Rd7#
    • 1...dxe4
      • 2.Rd6#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Qxd3#
      • 1...Kxc4
        • 2.Sb3#
      • 1...dxc4
        • 2.Rd6#
      • 1...dxe4
        • 2.Rxe4#
      • 1...Qf1!
    • 1.Qc3+?
      • 1...Ke3
        • 2.exd5#
      • 1...Kxc3!
    • 1.Qe3+?
      • 1...Kc3
        • 2.cxd5#
      • 1...Kxe3!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qxd3#
      • 1...Kxe4
        • 2.Sc6#
      • 1...dxc4
        • 2.Rxc4#
      • 1...dxe4
        • 2.Rd7#
      • 1...Qf1
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD::B(A),XS(b)
    • P(h);OGATEB,SBLOCK,XP(E)::R(K)
    • P(h);OGATEB,SBLOCK,XP(F)::R(I)
  • Tries
    • Try
      • S(H);
      • Threat
        • QAR1(C),XB(d)
      • Vars
        • K(g);N_SPINB(d),N_SPINS(b),P-FLIGHT,XP(E)::R(K)+S(H)
        • P(h);OGATEB,SBLOCK,XP(E)::R(I)
        • P(h);OGATE,XP(F)::R1(I),XP(h)
      • Refutation
        • Q(f);
    • Try
      • Q(C);CHECK,N_PINB(d)
      • Vars
        • K(g);P_SPINB(d),S_FLIGHT::R(I)+P(F),XP(h)
      • Refutation
        • K(g);N_SPINS(b),S_FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK,N_PINB(d),N_PINS(b)
      • Vars
        • K(g);P_SPINB(d),S_FLIGHT::R(K)+P(E),XP(h)
      • Refutation
        • K(g);P_SPINS(b),S_FLIGHT,XQ(C)
  • Actual
    • S(J);
    • Threat
      • QAR1(C),XB(d)
    • Vars
      • K(g);N_SPINB(d),N_SPINS(b),P-FLIGHT,XP(F)::R(I)+S(J)
      • P(h);OGATE,XP(E)::R1(K),XP(h)
      • P(h);OGATEB,SBLOCK,XP(F)::R(K)
      • Q(f);N_GUARD::S(J),XP(e)
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