MESON Chess Problem Database

Problem Display
PID: 89738 (7K/b1n2p2/b7/1p1R4/1pkPQN2/Pp1R1B2/2P5/2n5 w - - 0 1)

Bakcsi, Gyorgy

Die Schwalbe, 1994

7K/b1n2p2/b7/1p1R4/1pkPQN2/Pp1R1B2/2P5/2n5

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd4+
      • 2.Qxd4#
    • 1...Bc5
      • 2.Rxc5#
      • 2.dxc5#
    • 1...Bb8
      • 2.Rc5#
    • 1...Sa2
      • 2.cxb3#
    • 1...Se2
      • 2.cxb3#
    • 1...Sxd3
      • 2.Qxd3#
    • 1...Sxd5
      • 2.Qxd5#
  • Tries
    • 1.Sg2?
      • threat
        • 2.Se3#
      • 1...Bxd4+
        • 2.Qxd4#
      • 1...Sxd3
        • 2.Qxd3#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...bxa3!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qxb4#
      • 1...Bxd4+
        • 2.R3xd4#
      • 1...Sxd3
        • 2.cxd3#
      • 1...Sxd5
        • 2.Bxd5#
      • 1...bxa3
        • 2.Qc3#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Sa2
        • 2.cxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(g);CHECK,OGATE,P_SPINB(g),XP(E)::QAR1(F),XB(g)
    • B(g);N_GUARD::R1(H)
    • S(a);N_GUARD::P(A),XP(b)
    • S(a);OGATE,XR(C)::QAB1(F),XS(a)
    • S(h);OGATE,XR(H)::QAB1(F),XS(h)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • B(g);CHECK,OGATE,P_SPINB(g),XP(E)::QAR1(F),XB(g)
        • S(a);OGATE,XR(C)::QAB1(F),XS(a)
        • S(h);OGATE,XR(H)::QAB1(F),XS(h)
      • Refutation
        • P(c);XP(B)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F),XP(c)
    • Vars
      • B(g);CHECK,OGATE,XP(E)::R1(C),XB(g)
      • S(a);OGATE,XR(C)::P(A),XS(a)
      • S(h);OGATE,XR(H)::B(D),XS(h)
      • P(c);N_GUARD,XP(B)::QAR1(F)
      • B(g);N_GUARD::R1(H),XB(g)
      • S(a);N_GUARD::P(A),XP(b)
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