MESON Chess Problem Database

Problem Display
PID: 105404 (r3k3/5RRK/2p5/8/8/8/8/8 w q - 0 1)

Schilnikov, Vladimir Evgenievich

Lunintske Navini, 1994

r3k3/5RRK/2p5/8/8/8/8/8

#2

3 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd8
      • 2.Rf8#
      • 2.Rg8#
  • Tries
    • 1.Kg6?
      • threat
        • 2.Rg8#
      • 1...Kd8
        • 2.Rf8#
        • 2.Rg8#
      • 1...0-0-0!
    • 1.Kg8?
      • threat
        • 2.Rf8#
      • 1...Kd8
        • 2.Rf8#
      • 1...0-0-0+!
    • 1.Ra7?
      • threat
        • 2.Rxa8#
        • 2.Rg8#
      • 1...Kd8
        • 2.Rxa8#
        • 2.Rg8#
      • 1...Kf8
        • 2.Rxa8#
        • 2.Rg8#
      • 1...0-0-0
        • 2.Ra8#
      • 1...Rb8
        • 2.Rg8#
      • 1...Rc8
        • 2.Rg8#
      • 1...Rd8
        • 2.Rg8#
      • 1...Rxa7!
    • 1.Rc7?
      • threat
        • 2.Rg8#
      • 1...Kf8
        • 2.Rg8#
      • 1...Kd8!
    • 1.Re7+?
      • 1...Kf8
        • 2.Rgf7#
      • 1...Kd8!
  • Keys
    • 1.Rb7!
      • threat
        • 2.Rg8#
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf8
        • 2.Rg8#
      • 1...0-0-0
        • 2.Rgc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • R(B)
      • Refutation
        • K(c);0-0-0
    • Try
      • K(C);S_FLIGHT
      • Threat
        • R1(A)
      • Vars
        • K(c);P-FLIGHT::R(A)
      • Refutation
        • K(c);0-0-0,CHECK
    • Try
      • R(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);0-0-0::R(A)
        • R(b);::R(B)
        • R(b);SBLOCK::R(B)
      • Refutation
        • R(b);P_PINR(B),XR(A)
    • Try
      • R(A);
      • Threat
        • R(B)
      • Vars
        • K(c);P-FLIGHT::R1(B)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(A);CHECK
      • Vars
        • K(c);P-FLIGHT::R1(B)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • R(A);
    • Threat
      • R(B)
    • Vars
      • K(c);P-FLIGHT::R(B)
      • K(c);P-FLIGHT::R1(B)
      • K(c);0-0-0,OGATEB::R1(B)
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