MESON Chess Problem Database

Problem Display
PID: 80530 (5RK1/B3N1Pp/R7/2r1kN2/2p1p3/b2pr3/5QP1/8 w - - 0 1)

Brabec, Juraj

2/3 HM., Sachove umeni (Ceskoslovensky sach), 1979

5RK1/B3N1Pp/R7/2r1kN2/2p1p3/b2pr3/5QP1/8

#2

9 + 8

6424 Czech Album (1979-1981) 1986

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Qg3#
    • 1...Re2
      • 2.Qg3#
    • 1...Rg3
      • 2.Qxg3#
    • 1...Ra5
      • 2.Bd4#
    • 1...Rb5
      • 2.Bd4#
    • 1...Rc7
      • 2.Bd4#
    • 1...Rc8
      • 2.Bd4#
  • Tries
    • 1.Kf7?
      • threat
        • 2.Re6#
      • 1...Rc6
        • 2.Bd4#
      • 1...Rf3!
    • 1.Sh6?
      • threat
        • 2.Qf6#
      • 1...Kd4
        • 2.Qf6#
      • 1...Rf3
        • 2.Sg4#
      • 1...Rc6!
    • 1.Sg6+?
      • 1...Kd5
        • 2.Rd6#
        • 2.Rd8#
      • 1...hxg6!
    • 1.g3?
      • threat
        • 2.Qf4#
      • 1...Rxg3
        • 2.Qxg3#
      • 1...Rf3
        • 2.Qd4#
      • 1...Rc6!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qf6#
      • 1...Kxd4
        • 2.Qf6#
      • 1...Rf3
        • 2.Re6#
      • 1...Rc6
        • 2.Qf4#

This is a version of 107798

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(c);N_GUARD::QAB(A)
    • R(c);N_GUARD,P_PINP(G)::QAB(A),XR(c)
    • R(f);OGATE::B(E)
    • R(f);OGATE,P_PINR(H)::B(E)
  • Tries
    • Try
      • K(I);S_FLIGHT
      • Threat
        • R1(D)
      • Vars
        • R(f);OGATE::B(E)
      • Refutation
        • R(c);P_PINS(C)
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(g);P_SPINR(c),S_FLIGHT::QAB(A)
        • R(c);::S(C)
      • Refutation
        • R(f);
    • Try
      • S(F);CHECK
      • Refutation
        • P(h);XS(F)
    • Try
      • P(B);
      • Threat
        • QAB1(A)
      • Vars
        • R(c);OGATE,P_PINP(G),XP(B)::QAB(A),XR(c)
        • R(c);OGATE::QAB1(A)
      • Refutation
        • R(f);
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(g);P_SPINR(c),S_FLIGHT,XS(C)::QAB(A)
      • R(c);::R1(D)
      • R(f);::QAB1(A)
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