MESON Chess Problem Database

Problem Display
PID: 91917 (3n4/4K3/2pN4/8/n2kPP2/P1rN3Q/8/2R5 w - - 0 1)

Hoffmann, A

Schweizerische Schachzeitung, 1902

3n4/4K3/2pN4/8/n2kPP2/P1rN3Q/8/2R5

#2

8 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa3
      • 2.Rc4#
    • 1...Rb3
      • 2.Rc4#
    • 1...Rxd3
      • 2.Rc4#
    • 1...Rc4
      • 2.Rxc4#
  • Keys
    • 1.Sc5!
      • 1...Kxc5
        • 2.Qe3#
      • 1...Rxc1
        • 2.Sb3#
      • 1...Rxa3
        • 2.Sf5#
        • 2.Rc4#
      • 1...Rxh3
        • 2.Sf5#
      • 1...Rxc5
        • 2.Rd1#
      • 1...Sxc5
        • 2.Qxc3#
      • 1...Rc2
        • 2.Sb3#
      • 1...Rb3
        • 2.Sxb3#
        • 2.Sf5#
        • 2.Rc4#
      • 1...Rd3
        • 2.Sf5#
        • 2.Rc4#
        • 2.Qxd3#
      • 1...Re3
        • 2.Sf5#
        • 2.Rc4#
        • 2.Qh8#
      • 1...Rf3
        • 2.Sf5#
      • 1...Rg3
        • 2.Sf5#
      • 1...Rc4
        • 2.Sb3#
        • 2.Rxc4#
      • 1...Sb2
        • 2.Qxc3#
      • 1...Sb6
        • 2.Qxc3#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sb7
        • 2.Se6#
      • 1...Sf7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 4
  • Sets
    • R(a);OGATE,XP(B)::R1(A)
    • R(a);OGATE::R1(A)
    • R(a);OGATE,XS(C)::R1(A)
    • R(a);OGATE::R1(A),XR(a)
  • Actual
    • S(C);
    • Vars
      • K(c);P_SPINR(a),S_FLIGHT,XS(C)::QAB(D)
      • R(a);N_GUARD,XR(A)::S(C)
      • R(a);XQ(D)::S(G)
      • R(a);N_GUARD,SBLOCK,XS(C)::R(A)
      • S(b);N_GUARD,XS(C)::QAB1(D),XR(a)
      • R(a);N_GUARD::S(C)
      • R(a);::S(G)
      • S(b);N_GUARD::QAB1(D),XR(a)
      • S(e);N_GUARD::S(C),XS(e)
      • S(e);N_GUARD::S(C)
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