MESON Chess Problem Database

Problem Display
PID: 110166 (8/1qpQN1K1/1b2NpR1/1prp4/2p1kP2/2P4b/3BPP2/5r2 w - - 0 1)

Labai, Zoltan

Pedagogusok Lapja, 1974

8/1qpQN1K1/1b2NpR1/1prp4/2p1kP2/2P4b/3BPP2/5r2

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.f3#
    • 1...Rb1
      • 2.f3#
    • 1...Rc1
      • 2.f3#
    • 1...Rd1
      • 2.f3#
    • 1...Re1
      • 2.f3#
    • 1...Rg1
      • 2.f3#
    • 1...Rh1
      • 2.f3#
    • 1...Rc6
      • 2.Qxd5#
    • 1...Bxe6
      • 2.Qxe6#
    • 1...Ba5
      • 2.Sxc5#
    • 1...d4
      • 2.Qxd4#
    • 1...f5
      • 2.Sg5#
  • Tries
    • 1.Kxf6?
      • threat
        • 2.Sg5#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Rg1
        • 2.f3#
      • 1...Rc6
        • 2.Qxd5#
      • 1...d4
        • 2.Qxd4#
      • 1...Qc6!
    • 1.Rxf6?
      • threat
        • 2.Sg5#
      • 1...Bxe6
        • 2.Rxe6#
        • 2.Qxe6#
      • 1...d4
        • 2.Qxd4#
      • 1...Rg1+!
  • Keys
    • 1.Rg3!
      • threat
        • 2.Re3#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Rg1
        • 2.f3#
      • 1...Rc6
        • 2.Qxd5#
      • 1...d4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(a);N_GUARD::P(C)
    • R(a);N_GUARD,P_PINR(G)::P(C)
    • R(f);N_GUARD,S_CUTQ(j)::QAB1(H),XP(g)
    • B(b);OGATE,XS(F)::QAR2(H),XB(b)
    • B(h);N_GUARD::S(F),XR(f)
    • P(g);OGATE::QAR1(H),XP(g)
    • P(i);N_GUARD::S(F)
  • Tries
    • Try
      • K(J);S_FLIGHT,XP(i)
      • Threat
        • S(F)
      • Vars
        • B(b);OGATE,XS(F)::QAR2(H),XB(b)
        • R(a);N_GUARD::P(C)
        • R(f);N_GUARD,P_PINS(F),S_CUTQ(j)::QAB1(H),XP(g)
        • P(g);OGATE::QAR1(H),XP(g)
      • Refutation
        • Q(j);P_PINS(F)
    • Try
      • R(G);XP(i)
      • Threat
        • S(F)
      • Vars
        • P(g);OGATE::QAR1(H),XP(g)
      • Refutation
        • R(a);CHECK
  • Actual
    • R(G);
    • Threat
      • R1(G)
    • Vars
      • B(b);OGATE,XS(F)::QAR2(H),XB(b)
      • R(a);N_GUARD,P_PINR(G)::P(C)
      • R(f);N_GUARD,S_CUTQ(j)::QAB1(H),XP(g)
      • P(g);OGATE::QAR1(H),XP(g)
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