MESON Chess Problem Database

Problem Display
PID: 263120 (1b6/3R4/3p4/2PP1Q2/1B1kPpbN/Npp2R2/1n2PP1K/8 w - - 0 1)

Labai, Zoltan

Svitek, Miroslav

2nd HM., SuperProblem, 2021

1b6/3R4/3p4/2PP1Q2/1B1kPpbN/Npp2R2/1n2PP1K/8

#2

12 + 8

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf3
      • 2.Sxf3#
    • 1...Sd1
      • 2.Rd3#
    • 1...Sd3
      • 2.Rxd3#
    • 1...Sa4
      • 2.Rd3#
    • 1...Sc4
      • 2.Sb5#
      • 2.Rd3#
    • 1...dxc5
      • 2.Bxc3#
  • Tries
    • 1.Re3?
      • threat
        • 2.Qf6#
      • 1...Bxf5
        • 2.Sf3#
      • 1...dxc5
        • 2.Bxc3#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Sc4
        • 2.Sb5#
        • 2.Rd3#
      • 1...fxe3!
    • 1.Rxf4?
      • threat
        • 2.Qf6#
      • 1...Bxf5
        • 2.Sf3#
      • 1...dxc5
        • 2.e5#
      • 1...Sd3
        • 2.e3#
      • 1...Sc4
        • 2.Sb5#
      • 1...Bxe2!
  • Keys
    • 1.Re7!
      • threat
        • 2.Qf6#
      • 1...Bxf5
        • 2.Sxf5#
      • 1...dxc5
        • 2.Bxc3#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Sc4
        • 2.Sb5#
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(f);XR(E)::S(H),XB(f)
    • S(a);N_GUARD::R1(E)
    • S(a);N_GUARD::R1(E),XS(a)
    • P(g);SBLOCK,XP(I)::B(F),XP(c)
  • Tries
    • Try
      • R(E);
      • Threat
        • QAB(K)
      • Vars
        • B(f);N_GUARD,XQ(K)::S(H)
        • P(g);SBLOCK,XP(I)::B(F),XP(c)
        • S(a);N_GUARD::R1(E),XS(a)
      • Refutation
        • P(e);XR(E)
    • Try
      • R(E);XP(e)
      • Threat
        • QAB(K)
      • Vars
        • B(f);N_GUARD,XQ(K)::S(H)
        • P(g);P_PINR(E),XP(I)::R(E)+P(G)
        • S(a);SBLOCK::P(A)
        • S(a);SBLOCK::S(D)
      • Refutation
        • B(f);XP(A)
  • Actual
    • R(L);
    • Threat
      • QAB(K)
    • Vars
      • B(f);XQ(K)::S(H),XB(f)
      • P(g);SBLOCK,XP(I)::B(F),XP(c)
      • S(a);N_GUARD::R1(E),XS(a)
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