MESON Chess Problem Database

Problem Display
PID: 96290 (2B1R3/8/3Q2n1/2Ppn3/3k2N1/3P4/8/2R2K2 w - - 0 1)

Bourd, Evgeny

Problemesis, 2005

2B1R3/8/3Q2n1/2Ppn3/3k2N1/3P4/8/2R2K2

#2

8 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Qxd5#
  • Tries
    • 1.Ba6?
      • 1...Sxd3
        • 2.Rc4#
      • 1...Sxg4
        • 2.Re4#
      • 1...Sf3
        • 2.Re4#
      • 1...Sc6
        • 2.Re4#
      • 1...Sd7
        • 2.Re4#
      • 1...Sf7
        • 2.Re4#
      • 1...Sf4
        • 2.Qxe5#
      • 1...Sh4
        • 2.Qxe5#
      • 1...Se7
        • 2.Qxe5#
      • 1...Sf8
        • 2.Qxe5#
      • 1...Sh8
        • 2.Qxe5#
      • 1...Sc4!
    • 1.Rc4+?
      • 1...Kxd3
        • 2.Qxd5#
      • 1...Sxc4!
    • 1.Qxe5+?
      • 1...Kxd3
        • 2.Qc3#
        • 2.Qe3#
        • 2.Qxd5#
      • 1...Sxe5!
  • Keys
    • 1.Bf5!
      • 1...Sxd3
        • 2.Re4#
      • 1...Sxg4
        • 2.Rc4#
      • 1...Sf3
        • 2.Rc4#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Sc6
        • 2.Rc4#
      • 1...Sd7
        • 2.Rc4#
      • 1...Sf7
        • 2.Rc4#
      • 1...Sf4
        • 2.Qxe5#
      • 1...Sh4
        • 2.Qxe5#
      • 1...Se7
        • 2.Qxe5#
      • 1...Sf8
        • 2.Qxe5#
      • 1...Sh8
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT,XP(C)::QAR2(F),XP(b)
  • Tries
    • Try
      • B(G);
      • Vars
        • S(c);N_GUARD,SBLOCK,XP(C)::R1(A)
        • S(c);OGATE,XS(D)::R1(H)
        • S(c);OGATE::R1(H)
        • S(d);N_GUARD::QAB1(F),XS(c)
      • Refutation
        • S(c);
    • Try
      • R(A);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(C)::QAR2(F),XP(b)
      • Refutation
        • S(c);XR(A)
    • Try
      • Q(F);CHECK,N_PINP(b),XS(c)
      • Refutation
        • S(d);XQ(F)
  • Actual
    • B(G);
    • Vars
      • S(c);OGATE,SBLOCK,XP(C)::R1(H)
      • S(c);N_GUARD,XS(D)::R1(A)
      • S(c);N_GUARD::R1(A)
      • S(c);N_GUARD::R1(A),XS(c)
      • S(d);N_GUARD::QAB1(F),XS(c)
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