MESON Chess Problem Database

Problem Display
PID: 15679 (2R5/8/KPP2nQr/1pkBP3/2p2N2/5N2/1P1B1b2/8 w - - 0 1)

Maleika, Gerhard

1st Prize, diagrammes, 1986

2R5/8/KPP2nQr/1pkBP3/2p2N2/5N2/1P1B1b2/8

#2

11 + 6

3297 FIDE Album (1986-1988) 1995
56 The Problemist 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qxg1#
    • 1...Sxd5
      • 2.Se6#
    • 1...Sd7
      • 2.cxd7#
  • Tries
    • 1.Ka5?
      • threat
        • 2.Bb4#
      • 1...Sxd5
        • 2.Se6#
      • 1...c3
        • 2.b4#
      • 1...b4
        • 2.Bxb4#
      • 1...Be1!
    • 1.Rd8?
      • threat
        • 2.Se6#
      • 1...Sxd5
        • 2.Rxd5#
      • 1...c3
        • 2.Sd3#
      • 1...Sd7!
  • Keys
    • 1.Qc2!
      • threat
        • 2.b4#
      • 1...Sxd5
        • 2.Sd3#
      • 1...c3
        • 2.Qxc3#
      • 1...b4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATEB::QAB(J),XB(a)
    • S(e);SBLOCK,XB(E)::S(D)
    • S(e);OGATE::R(K)+P(I),XS(e)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Threat
        • B(B)
      • Vars
        • S(e);SBLOCK,XB(E)::S(D)
        • P(b);N_GUARD::P(A)
        • P(c);::B(B),XP(c)
      • Refutation
        • B(a);P_PINB(B)
    • Try
      • R(K);
      • Threat
        • S(D)
      • Vars
        • S(e);OGATE,XB(E)::R1(K),XS(e)
        • P(b);N_GUARD::S(D)
      • Refutation
        • S(e);
  • Actual
    • Q(J);P_PINP(b)
    • Threat
      • P(A)
    • Vars
      • S(e);SBLOCK,XB(E)::S(D)
      • P(b);OGATEB::QAR2(J),XP(b)
      • P(c);N_GUARD::QAR1(J),XP(b)
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