MESON Chess Problem Database

Problem Display
PID: 278096 (1Rn3nR/1pP3b1/1P1kP1N1/1Q1p1B2/KN5r/2B5/8/7b w - - 0 1)

Maleika, Gerhard

Phenix, 2007

1Rn3nR/1pP3b1/1P1kP1N1/1Q1p1B2/KN5r/2B5/8/7b

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb4+
      • 2.Bxb4#
    • 1...Re4
      • 2.Qxd5#
    • 1...Be5
      • 2.Bxe5#
    • 1...Bh6
      • 2.Be5#
    • 1...Bf8
      • 2.Be5#
    • 1...Sxb6+
      • 2.Qxb6#
    • 1...Sa7
      • 2.Rd8#
    • 1...Sce7
      • 2.Rd8#
    • 1...Sf6
      • 2.Be5#
    • 1...Sh6
      • 2.Rd8#
    • 1...Sge7
      • 2.Rd8#
  • Tries
    • 1.Rxc8?
      • threat
        • 2.Rd8#
      • 1...Rxb4+
        • 2.Bxb4#
      • 1...Sf6
        • 2.Be5#
      • 1...Bf6!
  • Keys
    • 1.e7!
      • threat
        • 2.e8S#
      • 1...Rxb4+
        • 2.Bxb4#
      • 1...Sxb6+
        • 2.Qxb6#
      • 1...Scxe7
        • 2.Rd8#
      • 1...Sgxe7
        • 2.Rd8#
      • 1...Re4
        • 2.Qxd5#
      • 1...Sf6
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(b);CHECK,OGATE,XS(C)::B(A),XR(b)
    • R(b);S_CUTB(a)::QAR1(D),XP(c)
    • B(f);N_GUARD::B(A),XB(f)
    • B(f);N_GUARD::B(A)
    • S(g);CHECK,OGATE,XP(F)::QAR2(D),XS(g)
    • S(g);OGATE::R(J)
    • S(h);S_CUTB(f)::B(A)
    • S(h);OGATE::R(K)
  • Tries
    • Try
      • R(J);XS(g)
      • Threat
        • R(J)
      • Vars
        • R(b);CHECK,OGATE,XS(C)::B(A),XR(b)
        • S(h);S_CUTB(f)::B(A)
      • Refutation
        • B(f);
  • Actual
    • P(G);
    • Threat
      • P=S
    • Vars
      • R(b);CHECK,OGATE,XS(C)::B(A),XR(b)
      • S(g);CHECK,OGATE,XP(F)::QAR2(D),XS(g)
      • S(g);OGATE,XP(G)::R(J)
      • S(h);OGATE,XP(G)::R(K)
      • R(b);S_CUTB(a)::QAR1(D),XP(c)
      • S(h);S_CUTB(f)::B(A)
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