MESON Chess Problem Database

Problem Display
PID: 103688 (2NK4/R1P5/b1k5/7Q/nPp3p1/2P5/7b/8 w - - 0 1)

Radovanovic, Slavko

Bilt, 2002

2NK4/R1P5/b1k5/7Q/nPp3p1/2P5/7b/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc7+
      • 2.Rxc7#
    • 1...Bb7
      • 2.b5#
    • 1...Sb2
      • 2.Qc5#
    • 1...Sxc3
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sb6
      • 2.Qc5#
  • Tries
    • 1.Se7+?
      • 1...Kd6
        • 2.Qd5#
      • 1...Kb6!
    • 1.Rxa6+?
      • 1...Sb6
        • 2.Rxb6#
      • 1...Kb7!
  • Keys
    • 1.Rb7!
      • 1...Bxc7+
        • 2.Rxc7#
      • 1...Kxb7
        • 2.Qd5#
      • 1...Bxb7
        • 2.b5#
      • 1...Sxc3
        • 2.Rb6#
      • 1...Be5
        • 2.Qh1#
      • 1...Bg1
        • 2.Qh1#
      • 1...Bg3
        • 2.Qh1#
      • 1...Bf4
        • 2.Qh1#
      • 1...Bd6
        • 2.Qh1#
      • 1...Bb5
        • 2.Qxb5#
      • 1...Sb2
        • 2.Rb6#
      • 1...Sc5
        • 2.Rb6#
      • 1...Sb6
        • 2.Rxb6#
      • 1...g3
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 4
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(a);CHECK,OGATE,XP(E)::R1(D),XB(a)
    • B(e);N_GUARD::P(B)
    • S(b);N_GUARD::QAR1(C)
    • S(b);N_GUARD,XP(A)::QAR1(C)
    • S(b);N_GUARD::QAR1(C),XS(b)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(f);P-FLIGHT::QAR1(C)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • R(D);CHECK,XB(e)
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::R1(D),XS(b)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • B(a);CHECK,OGATE,XP(E)::R1(D),XB(a)
      • K(f);S_FLIGHT,XR(D)::QAB(C)
      • B(e);N_GUARD,SBLOCK,XR(D)::P(B)
      • S(b);N_GUARD,XP(A)::R1(D)
      • B(a);OGATE::QAB(C)
      • B(e);N_GUARD::QAB1(C),XB(e)
      • S(b);N_GUARD::R1(D)
      • S(b);N_GUARD::R1(D),XS(b)
      • P(d);OGATE::QAB(C)
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