MESON Chess Problem Database

Problem Display
PID: 187380 (7B/7b/1N2B2p/2PR1p2/r3kP2/3p1p1N/3P4/2nK4 w - - 0 1)

Tkachenko, Sergiy Ivanovich

StrateGems, 2018

7B/7b/1N2B2p/2PR1p2/r3kP2/3p1p1N/3P4/2nK4

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Rd4#
    • 1...Ra2
      • 2.Rd4#
    • 1...Ra3
      • 2.Rd4#
    • 1...Rd4
      • 2.Rxd4#
      • 2.Re5#
    • 1...Ra5
      • 2.Rd4#
    • 1...Ra6
      • 2.Rd4#
    • 1...Ra7
      • 2.Rd4#
    • 1...Ra8
      • 2.Rd4#
    • 1...Bg8
      • 2.Bxf5#
  • Tries
    • 1.Sc8?
      • threat
        • 2.Sd6#
      • 1...Ra6
        • 2.Rd4#
      • 1...f2!
    • 1.Rxf5?
      • threat
        • 2.Sf2#
      • 1...Bxf5
        • 2.Bd5#
      • 1...f2!
    • 1.Rd6?
      • threat
        • 2.Bd5#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Bg8!
    • 1.Rd7?
      • threat
        • 2.Bd5#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Bg8!
    • 1.Rd8?
      • threat
        • 2.Bd5#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Bg8!
  • Keys
    • 1.Rxd3!
      • threat
        • 2.Re3#
      • 1...Kxd3
        • 2.Sf2#
      • 1...Sxd3
        • 2.Bd5#
      • 1...Ra3
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(d);N_GUARD::R1(F)
    • B(h);N_GUARD::B(H),XP(f)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • R(d);N_GUARD::R1(F)
      • Refutation
        • P(c);
    • Try
      • R(F);XP(f)
      • Threat
        • S(C)
      • Vars
        • B(h);SBLOCK,XR(F)::B(H)
      • Refutation
        • P(c);
    • Try
      • R(F);
      • Threat
        • B(H)
      • Vars
        • R(d);N_GUARD::R1(F),XR(d)
      • Refutation
        • B(h);
    • Try
      • R(F);
      • Threat
        • B(H)
      • Vars
        • R(d);N_GUARD::R1(F),XR(d)
      • Refutation
        • B(h);
    • Try
      • R(F);
      • Threat
        • B(H)
      • Vars
        • R(d);N_GUARD::R1(F),XR(d)
      • Refutation
        • B(h);
  • Actual
    • R(F);XP(b)
    • Threat
      • R1(F)
    • Vars
      • K(e);S_FLIGHT,XR(F)::S(C)
      • S(a);SBLOCK,XR(F)::B(H)
      • R(d);N_GUARD::R1(F)
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