MESON Chess Problem Database

Problem Display
PID: 189721 (8/8/5p2/3n4/1p1K3b/1BPR1Q2/N1PPP1r1/3knR2 w - - 0 1)

Nemo, Ottmar (Weiss, Ottmar)

Tidskrift for Schack, 1912

8/8/5p2/3n4/1p1K3b/1BPR1Q2/N1PPP1r1/3knR2

#2

10 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.e3#
      • 2.e4#
    • 1...Rg4+
      • 2.e4#
    • 1...Rg5
      • 2.e3#
      • 2.e4#
    • 1...Rg6
      • 2.e3#
      • 2.e4#
    • 1...Rg7
      • 2.e3#
      • 2.e4#
    • 1...Rg8
      • 2.e3#
      • 2.e4#
    • 1...Bf2+
      • 2.e3#
    • 1...Sxc3
      • 2.dxc3#
    • 1...Se3
      • 2.dxe3#
    • 1...bxc3
      • 2.dxc3#
  • Tries
    • 1.cxb4?
      • threat
        • 2.c3#
        • 2.c4#
      • 1...Rg4+
        • 2.e4#
      • 1...Bf2+
        • 2.e3#
      • 1...Sc3
        • 2.dxc3#
      • 1...Se3
        • 2.dxe3#
      • 1...Sxb4!
  • Keys
    • 1.c4!
      • threat
        • 2.c3#
      • 1...Rg4+
        • 2.e4#
      • 1...Bf2+
        • 2.e3#
      • 1...Sc3
        • 2.dxc3#
      • 1...Se3
        • 2.dxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(c);CHECK,N_GUARD::QAB(I)+P(E)
    • B(e);CHECK,S_CUTR(c)::QAB(I)+P(E)
    • S(f);OGATE,XP(G)::R(H)+P(D),XS(f)
    • S(f);OGATE::R(H)+P(D),XS(f)
    • P(d);OGATE,XP(G)::R(H)+P(D),XP(d)
  • Tries
    • Try
      • P(G);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • R(c);CHECK,N_GUARD::QAB(I)+P(E)
        • B(e);CHECK,S_CUTR(c)::QAB(I)+P(E)
        • S(f);OGATE::R(H)+P(D),XS(f)
      • Refutation
        • S(f);XP(G)
  • Actual
    • P(G);
    • Threat
      • B(F)+P(C)
    • Vars
      • R(c);CHECK,N_GUARD::QAB(I)+P(E)
      • B(e);CHECK,S_CUTR(c)::QAB(I)+P(E)
      • S(f);OGATE::R(H)+P(D),XS(f)
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