MESON Chess Problem Database

Problem Display
PID: 205770 (1bN2B2/p4RKp/2pPp3/4k1p1/2r5/2P1NP2/1Q6/8 w - - 0 1)

Klinke, Arthur

4th HM., Unterfrankische Arbeiter-Schachzeitung, 1925

1bN2B2/p4RKp/2pPp3/4k1p1/2r5/2P1NP2/1Q6/8

#2

9 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3
      • 2.Qxc3#
    • 1...Ra4
      • 2.c4#
    • 1...Rb4
      • 2.cxb4#
    • 1...Rd4
      • 2.cxd4#
    • 1...Rc5
      • 2.Qh2#
      • 2.c4#
    • 1...Bxd6
      • 2.Bxd6#
  • Tries
    • 1.Sb6?
      • threat
        • 2.Sexc4#
        • 2.Sbxc4#
        • 2.Sd7#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rf4
        • 2.Sd7#
      • 1...Ra4
        • 2.Sd7#
        • 2.c4#
      • 1...Rb4
        • 2.Sd7#
        • 2.cxb4#
      • 1...Rd4
        • 2.Sd7#
        • 2.cxd4#
      • 1...Re4
        • 2.Sd7#
      • 1...Rg4
        • 2.Sxg4#
        • 2.Sd7#
      • 1...Rh4
        • 2.Sd7#
      • 1...Rc5
        • 2.Sg4#
        • 2.Sd7#
        • 2.Qh2#
        • 2.c4#
      • 1...axb6!
    • 1.d7?
      • threat
        • 2.Qxb8#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rb4
        • 2.cxb4#
      • 1...Rd4
        • 2.cxd4#
      • 1...Bd6
        • 2.Bxd6#
      • 1...Bc7!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sxc4#
      • 1...Kxd6
        • 2.Sg6#
      • 1...Rxc3
        • 2.Sxc6#
      • 1...Rf4
        • 2.Sxc6#
      • 1...Ra4
        • 2.Sxc6#
      • 1...Rb4
        • 2.Sxc6#
      • 1...Rd4
        • 2.Sxc6#
      • 1...Re4
        • 2.Sxc6#
      • 1...Rg4
        • 2.Sxc6#
      • 1...Rh4
        • 2.Sxc6#
      • 1...Rc5
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(a);OGATE,P_SPINR(a),XP(B)::QAB(A),XR(a)
    • R(a);OGATE::QAB(A)+P(B)
    • R(a);OGATE::QAB(A)+P(B),XR(a)
    • R(a);OGATE::P(B),XR(a)
    • B(h);OGATE,XP(E)::B(I),XB(h)
  • Tries
    • Try
      • S(H);
      • Threat
        • DUALS(3)
      • Vars
        • R(a);OGATE,P_SPINR(a),XP(B)::QAB(A),XR(a)
        • R(a);::S(H)
      • Refutation
        • P(f);XS(H)
    • Try
      • P(E);
      • Threat
        • QAB(A),XB(h)
      • Vars
        • R(a);OGATE,P_SPINR(a),XP(B)::QAB(A),XR(a)
        • R(a);OGATE::QAB(A)+P(B),XR(a)
        • R(a);OGATE::P(B),XR(a)
        • B(h);N_GUARD::B(I),XB(h)
      • Refutation
        • B(h);
  • Actual
    • S(H);
    • Threat
      • S(C),XR(a)
    • Vars
      • K(b);S_FLIGHT,XP(E)::B(I)+S(H)
      • R(a);N_GUARD,P_SPINR(a),XP(B)::S(H),XP(d)
      • R(a);N_GUARD::S(H),XP(d)
      • R(a);N_GUARD::QAB(A)
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