MESON Chess Problem Database

Problem Display
PID: 15564 (2K5/4R3/5p2/1B1knN2/1P4P1/3pRpP1/8/8 w - - 0 1)

Rychkov, Vladimir Nikolaevich

1st HM., Sverdlovsk Ty., 1985

2K5/4R3/5p2/1B1knN2/1P4P1/3pRpP1/8/8

#2

8 + 5

4001 Izbrannie Shakmatny Zadachi Vladimira Rychkova 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Rxd3#
    • 1...Sxg4
      • 2.Rxd3#
      • 2.Rd7#
    • 1...Sc6
      • 2.Rd7#
    • 1...Sg6
      • 2.Rxd3#
      • 2.Rd7#
    • 1...Sd7
      • 2.Rxd3#
      • 2.Rxd7#
    • 1...Sf7
      • 2.Rxd3#
  • Tries
    • 1.Rxd3+?
      • 1...Ke4
        • 2.Sd6#
        • 2.Rd4#
      • 1...Sxd3!
    • 1.Re6?
      • threat
        • 2.Rd6#
      • 1...Kxe6
        • 2.Bc4#
      • 1...Sc4
        • 2.Bc6#
      • 1...Sf7!
    • 1.Rd7+?
      • 1...Ke6
        • 2.Sd4#
        • 2.Sg7#
        • 2.Bc4#
      • 1...Sxd7!
  • Keys
    • 1.Re4!
      • threat
        • 2.Rd4#
      • 1...Kxe4
        • 2.Bc6#
      • 1...Sc6
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • S(d);N_GUARD::R(A),XP(a)
    • S(d);N_GUARD::R(G)
  • Tries
    • Try
      • R(A);CHECK,XP(a)
      • Refutation
        • S(d);XR(A)
    • Try
      • R(G);
      • Threat
        • R1(G)
      • Vars
        • K(c);P_SPINS(d),S_FLIGHT,XR(G)::B(E)
        • S(d);N_GUARD,SBLOCK::B(E)
      • Refutation
        • S(d);
    • Try
      • R(G);CHECK
      • Refutation
        • S(d);XR(G)
  • Actual
    • R(A);
    • Threat
      • R1(A)
    • Vars
      • K(c);P_SPINS(d),S_FLIGHT,XR(A)::B(E)
      • S(d);N_GUARD,SBLOCK::B(E)
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