MESON Chess Problem Database

Problem Display
PID: 109457 (1B1K1R2/1B6/2P1N3/2NkPp2/2p3p1/5n2/5Q1b/3r4 w - - 0 1)

Strzala, Kazimierz

Wola Gulowska, 2002

1B1K1R2/1B6/2P1N3/2NkPp2/2p3p1/5n2/5Q1b/3r4

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Sf4#
    • 1...Bf4
      • 2.Sxf4#
    • 1...Sd2
      • 2.Qd4#
    • 1...c3
      • 2.Qa2#
    • 1...g3
      • 2.Sf4#
      • 2.Qxf3#
  • Tries
    • 1.Rxf5?
      • threat
        • 2.Sc7#
        • 2.c7#
      • 1...Bxe5
        • 2.Sf4#
      • 1...Sxe5
        • 2.Qg2#
      • 1...c3
        • 2.Qa2#
      • 1...Rb1
        • 2.Sc7#
      • 1...Rd4
        • 2.c7#
      • 1...Sd4!
  • Keys
    • 1.Ke7!
      • threat
        • 2.Rd8#
      • 1...Bxe5
        • 2.c7#
      • 1...Sxe5
        • 2.Sc7#
      • 1...c3
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(b);N_GUARD::S(E)
    • B(b);N_GUARD::S(E),XB(b)
    • S(c);N_GUARD,S_CUTR(a)::QAR1(A)
    • P(d);OGATEB::QAB(A)
  • Tries
    • Try
      • R(I);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);N_GUARD,P_SPINB(b),XP(C)::S(E)
        • S(c);OGATEB,P_SPINS(c),XP(C)::QAB(A)
        • P(d);OGATEB::QAB(A)
        • R(a);::S(E)
        • R(a);::B(F)+P(D)
      • Refutation
        • S(c);
  • Actual
    • K(H);S_FLIGHT
    • Threat
      • R(I)
    • Vars
      • B(b);SBLOCK,XP(C)::B(F)+P(D)
      • S(c);SBLOCK,XP(C)::S(E)
      • P(d);OGATEB::QAB(A)
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