MESON Chess Problem Database

Problem Display
PID: 237405 (3R4/5p1N/2P2P2/BK1Ppbn1/1pp1k2N/1pP3Qn/Rr3p1r/5B2 w - - 0 1)

Labai, Zoltan

Freie Presse, 1984

3R4/5p1N/2P2P2/BK1Ppbn1/1pp1k2N/1pP3Qn/Rr3p1r/5B2

#2

12 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Re2#
    • 1...Re2
      • 2.Rxe2#
    • 1...Sg1
      • 2.Sxg5#
    • 1...Sf4
      • 2.Sxg5#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Se6
      • 2.Qf3#
    • 1...Sxh7
      • 2.Qf3#
  • Tries
    • 1.Kxc4?
      • threat
        • 2.Bd3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Re2
        • 2.Rxe2#
      • 1...Sf4
        • 2.Sxg5#
      • 1...Rd2!
    • 1.Bg2+?
      • 1...Sf3
        • 2.Qxf3#
      • 1...Rxg2!
    • 1.Bb6?
      • threat
        • 2.Qe3#
      • 1...Re2
        • 2.Rxe2#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Bd7!
  • Keys
    • 1.Bc7!
      • threat
        • 2.Qxe5#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Re2
        • 2.Rxe2#
      • 1...Sf4
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(a);OGATE::R(B)
    • R(a);OGATE::R(B),XR(a)
    • S(e);N_GUARD::S(K),XS(k)
    • S(k);N_GUARD::QAB1(D),XS(k)
    • S(k);N_GUARD::QAB1(D)
    • S(k);N_GUARD,XS(K)::QAB1(D)
  • Tries
    • Try
      • K(G);S_FLIGHT,XP(g)
      • Threat
        • B(A)
      • Vars
        • S(k);N_GUARD::QAB1(D),XS(k)
        • R(a);OGATE::R(B),XR(a)
        • S(e);N_GUARD::S(K),XS(k)
      • Refutation
        • R(a);
    • Try
      • B(A);CHECK
      • Vars
        • S(k);N_GUARD,P_SPINS(k)::QAB1(D),XS(k)
      • Refutation
        • R(c);XB(A)
    • Try
      • B(F);
      • Threat
        • QAR1(D)
      • Vars
        • R(a);OGATE::R(B),XR(a)
        • S(k);N_GUARD::QAB1(D),XS(k)
      • Refutation
        • B(j);P_PINP(I)
  • Actual
    • B(F);
    • Threat
      • QAR1(D),XP(i)
    • Vars
      • S(k);N_GUARD::QAB1(D),XS(k)
      • R(a);OGATE::R(B),XR(a)
      • S(e);N_GUARD::S(K),XS(k)
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