MESON Chess Problem Database

Problem Display
PID: 22208 (2B3R1/8/3b3p/6Pk/R2r4/1n1p3K/Q2B4/5N2 w - - 0 1)

Schmidt, Leif Carl

Land og Folk, 1974

2B3R1/8/3b3p/6Pk/R2r4/1n1p3K/Q2B4/5N2

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Sg3#
    • 1...Rg4
      • 2.Bxg4#
    • 1...Rh4+
      • 2.Rxh4#
    • 1...Rd5
      • 2.Bg4#
      • 2.Rh4#
    • 1...Ba3
      • 2.Sg3#
    • 1...Bg3
      • 2.Sxg3#
    • 1...Bb4
      • 2.Sg3#
    • 1...Bf4
      • 2.Bg4#
    • 1...Bc5
      • 2.Sg3#
    • 1...Be7
      • 2.Sg3#
    • 1...Bf8
      • 2.Sg3#
    • 1...Sa1
      • 2.Qf7#
    • 1...Sc1
      • 2.Qf7#
    • 1...Sxd2
      • 2.Qf7#
    • 1...Sa5
      • 2.Qf7#
    • 1...Sc5
      • 2.Qf7#
  • Tries
    • 1.Bf4?
      • threat
        • 2.Sg3#
        • 2.Bg4#
      • 1...Rxf4
        • 2.Sg3#
      • 1...Bxf4
        • 2.Bg4#
      • 1...hxg5!
    • 1.Be6?
      • threat
        • 2.Bf7#
      • 1...Rh4+
        • 2.Rxh4#
      • 1...Rf4
        • 2.Sg3#
      • 1...hxg5!
    • 1.Rxd4?
      • threat
        • 2.Bg4#
        • 2.Rh4#
      • 1...Sxd4
        • 2.Bg4#
        • 2.Qf7#
      • 1...Bg3
        • 2.Sxg3#
        • 2.Bg4#
      • 1...Bf4
        • 2.Bg4#
      • 1...hxg5!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Bg6#
      • 1...Rh4+
        • 2.Rxh4#
      • 1...Sxd2
        • 2.Qf7#
      • 1...hxg5
        • 2.Rh8#
      • 1...Rf4
        • 2.Sg3#
      • 1...Bf4
        • 2.Bg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • R(c);S_CUTB(e)::S(A)
    • R(c);N_GUARD::B(G),XR(c)
    • R(c);CHECK,OGATE::R1(E),XR(c)
    • B(e);N_GUARD::S(A)
    • B(e);N_GUARD::S(A),XB(e)
    • B(e);S_CUTR(c)::B(G)
    • S(a);OGATE::QAB(B)
    • S(a);OGATE,XB(C)::QAB(B)
  • Tries
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);XB(C)::S(A)
        • B(e);XB(C)::B(G)
      • Refutation
        • P(f);XP(F)
    • Try
      • B(G);
      • Threat
        • B(G)
      • Vars
        • R(c);CHECK,OGATE::R1(E),XR(c)
        • R(c);S_CUTB(e)::S(A)
      • Refutation
        • P(f);XP(F)
    • Try
      • R(E);XR(c)
      • Threat
        • DUALS(2)
      • Vars
        • B(e);::B(G)
      • Refutation
        • P(f);XP(F)
  • Actual
    • B(G);
    • Threat
      • B(G)
    • Vars
      • R(c);CHECK,OGATE::R1(E),XR(c)
      • S(a);OGATE,XB(C)::QAB(B)
      • P(f);OGATEB,XP(F)::R(H)
      • R(c);S_CUTB(e)::S(A)
      • B(e);S_CUTR(c)::B(G)
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