MESON Chess Problem Database

Problem Display
PID: 174082 (3B4/6p1/R7/5k2/2KQ4/8/5n2/8 w - - 0 1)

Nicolaescu, Georghe

Componist, 2012

3B4/6p1/R7/5k2/2KQ4/8/5n2/8

#2

4 + 3

5454 Near Snap 2018
3713 Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Rf6#
  • Tries
    • 1.Kd5?
      • 1...Se4
        • 2.Qxe4#
      • 1...Sd1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...Sd3
        • 2.Qe4#
      • 1...Sh3
        • 2.Qe4#
      • 1...Sg4
        • 2.Qe4#
      • 1...g5
        • 2.Rf6#
      • 1...g6!
    • 1.Ra5+?
      • 1...Ke6
        • 2.Qd5#
      • 1...Kg6!
  • Keys
    • 1.Re6!
      • 1...Kxe6
        • 2.Qd5#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sd1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...Sd3
        • 2.Qe4#
      • 1...Sh3
        • 2.Qe4#
      • 1...Sg4
        • 2.Qe4#
      • 1...g5
        • 2.Rf6#
      • 1...g6
        • 2.Re5#

Anticipated by 51734(1960), 67767(2006)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD,SBLOCK::R1(C)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • S(a);N_GUARD::QAB1(B),XS(a)
        • S(a);N_GUARD::QAB1(B)
        • P(c);N_GUARD,SBLOCK::R1(C)
      • Refutation
        • P(c);
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(b);S_FLIGHT,XR(C)::QAB1(B)
      • S(a);N_GUARD::QAB1(B),XS(a)
      • S(a);N_GUARD::QAB1(B)
      • P(c);N_GUARD,SBLOCK::R1(C)
      • P(c);SBLOCK::R1(C)
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