MESON Chess Problem Database

Problem Display
PID: 184372 (8/8/2R5/2pk4/3N4/8/2R1K3/Q7 w - - 0 1)

Putilov, Sergey

Kudesnik, 2018

8/8/2R5/2pk4/3N4/8/2R1K3/Q7

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Kf3?
      • threat
        • 2.R2xc5#
      • 1...Ke5
        • 2.R2xc5#
      • 1...cxd4
        • 2.R2c5#
        • 2.Qa5#
      • 1...c4!
    • 1.Re6?
      • 1...cxd4
        • 2.Qa2#
      • 1...c4!
  • Keys
    • 1.Ke3!
      • threat
        • 2.R2xc5#
      • 1...cxd4+
        • 2.Qxd4#
      • 1...Ke5
        • 2.R2xc5#
      • 1...c4
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • R1(B),XP(a)
      • Vars
        • K(b);P-FLIGHT::R(B),XP(a)
      • Refutation
        • P(a);
    • Try
      • R(E);
      • Vars
        • P(a);N_GUARD,SBLOCK,XS(D)::QAB(A)
      • Refutation
        • P(a);
  • Actual
    • K(C);P-FLIGHT
    • Threat
      • R1(B),XP(a)
    • Vars
      • P(a);CHECK,OGATE,XS(D)::QAR1(A),XP(a)
      • K(b);P-FLIGHT::R(B),XP(a)
      • P(a);OGATEB::QAR(A)
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