MESON Chess Problem Database

Problem Display
PID: 108743 (8/2KpNRpp/p1Q5/r2BkP1b/6p1/b1Ppp1P1/2qp1NP1/8 w - - 0 1)

Labai, Zoltan

3rd Comm., Pedagogusok Lapja, 1977

8/2KpNRpp/p1Q5/r2BkP1b/6p1/b1Ppp1P1/2qp1NP1/8

#2

10 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Sxd3#
    • 1...Qb3
      • 2.Sxd3#
    • 1...Qa4
      • 2.Sxd3#
    • 1...Qc1
      • 2.Sxd3#
    • 1...Qa2
      • 2.Sxd3#
    • 1...Qb2
      • 2.Sxd3#
    • 1...Qxc3
      • 2.Qxc3#
    • 1...Rxd5
      • 2.Qxd5#
    • 1...Bc1
      • 2.Qd6#
    • 1...Bb2
      • 2.Qd6#
    • 1...Bd6+
      • 2.Qxd6#
    • 1...Bg6
      • 2.Sxg4#
    • 1...Bxf7
      • 2.Sxg4#
    • 1...g5
      • 2.Qf6#
    • 1...g6
      • 2.Qf6#
  • Tries
    • 1.Sg6+?
      • 1...Bxg6
        • 2.Sxg4#
      • 1...hxg6!
    • 1.Bf3?
      • threat
        • 2.Qe4#
      • 1...Bd6+
        • 2.Qxd6#
      • 1...Qxc3
        • 2.Qxc3#
      • 1...Bxf7
        • 2.Sxg4#
      • 1...dxc6
        • 2.Sxc6#
      • 1...Qa4
        • 2.Sxd3#
      • 1...Ra4
        • 2.Qd5#
      • 1...Rd5
        • 2.Qxd5#
      • 1...d5
        • 2.Qe6#
      • 1...Rc5!
  • Keys
    • 1.Kxd7!
      • threat
        • 2.Qe6#
      • 1...Rxd5+
        • 2.Qxd5#
      • 1...Qxc3
        • 2.Qxc3#
      • 1...Bxf7
        • 2.Sxg4#
      • 1...Qa4
        • 2.Sxd3#
      • 1...Bd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 10
  • Sets
    • Q(a);N_GUARD::S(A),XP(d)
    • Q(a);OGATE,P_PINQ(G),XP(C)::QAB(G),XQ(a)
    • R(g);OGATE,XB(E)::QAR1(G),XR(g)
    • B(c);N_GUARD::QAB1(G)
    • B(c);CHECK,N_GUARD::QAB1(G),XB(c)
    • B(i);N_GUARD::S(A),XP(f)
    • B(i);N_GUARD,XR(J)::S(A),XP(f)
    • P(l);N_GUARD::QAB1(G)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • B(i);XS(I)::S(A),XP(f)
      • Refutation
        • P(m);XS(I)
    • Try
      • B(E);
      • Threat
        • QAR1(G)
      • Vars
        • B(c);CHECK,N_GUARD::QAB1(G),XB(c)
        • Q(a);OGATE,P_PINQ(G),XP(C)::QAB(G),XQ(a)
        • B(i);N_GUARD,XR(J)::S(A),XP(f)
        • P(k);XQ(G)::S(I),XP(k)
        • Q(a);N_GUARD::S(A),XP(d)
        • R(g);N_GUARD::QAR1(G)
        • R(g);N_GUARD::QAR1(G),XR(g)
        • P(k);N_GUARD::QAR1(G)
      • Refutation
        • R(g);P_PINQ(G)
  • Actual
    • K(H);P-FLIGHT,XP(k)
    • Threat
      • QAR1(G)
    • Vars
      • R(g);CHECK,OGATE,XB(E)::QAR1(G),XR(g)
      • Q(a);OGATE,XP(C)::QAB(G),XQ(a)
      • B(i);N_GUARD,XR(J)::S(A),XP(f)
      • Q(a);N_GUARD,P_PINQ(G)::S(A),XP(d)
      • B(c);N_GUARD::QAB1(G),XB(c)
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