MESON Chess Problem Database

Problem Display
PID: 16026 (8/3p2n1/1Rpp4/3k4/8/5K2/3N1Q1B/4R3 w - - 0 1)

Orlik, Peter

OchoxOcho, 2000

8/3p2n1/1Rpp4/3k4/8/5K2/3N1Q1B/4R3

#2

6 + 5

5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Rxd6#
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qc4#
      • 1...Kd4
        • 2.Qc4#
      • 1...Kc5!
    • 1.Qe2?
      • threat
        • 2.Qc4#
      • 1...Kd4
        • 2.Qc4#
      • 1...Kc5!
  • Keys
    • 1.Ke3!
      • 1...Sf5+
        • 2.Qxf5#
      • 1...Kc5
        • 2.Ke4#
      • 1...Ke6
        • 2.Kd4#
      • 1...Sh5
        • 2.Qf5#
      • 1...Se6
        • 2.Qf5#
      • 1...Se8
        • 2.Qf5#
      • 1...c5
        • 2.Rxd6#

Anticipated by 108676(1905)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::R1(F),XP(c)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(E);P-FLIGHT
    • Vars
      • S(e);CHECK,N_GUARD::QAR2(C),XS(e)
      • K(a);P-FLIGHT::QAB(C)+K(E)
      • K(a);S_FLIGHT::R(A)+K(E)
      • S(e);N_GUARD::QAR2(C)
      • P(b);OGATE,SBLOCK::R1(F),XP(c)
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