MESON Chess Problem Database

Problem Display
PID: 115008 (8/4p3/3BB1b1/3N2p1/2QrknR1/4b3/1KPR3N/1n6 w - - 0 1)

Bakcsi, Gyorgy

Boletim da UBP, 1994-1995

8/4p3/3BB1b1/3N2p1/2QrknR1/4b3/1KPR3N/1n6

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd2
      • 2.Sc3#
    • 1...Sa3
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
  • Tries
    • 1.Rxf4+?
      • 1...Bxf4
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...gxf4!
    • 1.Qe2?
      • threat
        • 2.Qf3#
        • 2.Qg2#
        • 2.Qxe3#
      • 1...Rxd2
        • 2.Qxe3#
      • 1...Rxd5
        • 2.Qf3#
        • 2.Qg2#
      • 1...Sxd2
        • 2.Sc3#
        • 2.Qxe3#
      • 1...exd6
        • 2.Qxe3#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Rb4+!
    • 1.Qb3?
      • threat
        • 2.Qxe3#
      • 1...Rxd5
        • 2.Qxd5#
      • 1...Bxd2
        • 2.Qf3#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Bg1
        • 2.Qf3#
      • 1...Bf2
        • 2.Qf3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Rb4!
  • Keys
    • 1.Rxg5!
      • threat
        • 2.Re5#
      • 1...Sd3+
        • 2.cxd3#
      • 1...Sxd5
        • 2.Bxd5#
      • 1...exd6
        • 2.Sf6#
      • 1...Bf5
        • 2.Bxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD,XR(C)::S(G)
    • S(a);N_GUARD::S(G)
    • S(a);N_GUARD::S(G),XS(a)
  • Tries
    • Try
      • R(F);CHECK,XS(e)
      • Refutation
        • P(f);XR(F)
    • Try
      • Q(E);N_PINR(c),P_PINB(b)
      • Threat
        • DUALS(3)
      • Vars
        • R(c);P_PINP(B),XR(C)::QAR1(E),XB(b)
        • P(h);XB(H)::QAR1(E),XB(b)
        • R(c);N_GUARD::QAB1(E),XR(c)
      • Refutation
        • R(c);CHECK
    • Try
      • Q(E);N_PINR(c)
      • Threat
        • QAR1(E),XB(b)
      • Vars
        • R(c);OGATE,XS(G)::QAB1(E),XR(c)
        • B(b);OGATE,XR(C)::QAB1(E)
        • R(c);N_GUARD::QAB1(E),XR(c)
        • B(b);OGATE::QAB1(E)
        • S(a);N_GUARD::S(G),XS(a)
      • Refutation
        • R(c);P_PINQ(E)
  • Actual
    • R(F);N_PINS(e),XP(f)
    • Threat
      • R1(F)
    • Vars
      • S(e);CHECK,OGATE::P(B),XS(e)
      • S(e);OGATE,XS(G)::B(I),XS(e)
      • P(h);N_GUARD,XB(H)::S(G)
      • B(g);N_GUARD::B(I),XB(g)
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