MESON Chess Problem Database

Problem Display
PID: 124227 (2Qn4/6B1/1K1p4/1p1k4/N3p2n/p6r/2P5/8 w - - 0 1)

Mach, Julius Zdenek

Sachove listy, 1901

2Qn4/6B1/1K1p4/1p1k4/N3p2n/p6r/2P5/8

#2

5 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Sc3#
    • 1...Rh2
      • 2.Sc3#
    • 1...Rc3
      • 2.Sxc3#
    • 1...Sf3
      • 2.Sc3#
    • 1...Sc6
      • 2.Qg8#
    • 1...Se6
      • 2.Qc6#
    • 1...Sb7
      • 2.Qg8#
    • 1...e3
      • 2.Sc3#
    • 1...bxa4
      • 2.c4#
  • Tries
    • 1.Kxb5?
      • threat
        • 2.Sb6#
        • 2.Qc4#
        • 2.c4#
      • 1...e3
        • 2.Sc3#
        • 2.Qc4#
      • 1...Rc3
        • 2.Sxc3#
        • 2.Sb6#
      • 1...Sc6
        • 2.Sb6#
        • 2.Qg8#
        • 2.c4#
      • 1...Rb3+!
    • 1.Ka7?
      • threat
        • 2.Sb6#
      • 1...bxa4
        • 2.c4#
      • 1...e3
        • 2.Sc3#
      • 1...Sc6+!
    • 1.Qf5+?
      • 1...Kc4
        • 2.Qxe4#
        • 2.Qxb5#
      • 1...Sxf5!
    • 1.Qa8+?
      • 1...Kc4
        • 2.Qxe4#
      • 1...Sc6
        • 2.Qg8#
      • 1...Sb7
        • 2.Qg8#
      • 1...Ke6!
  • Keys
    • 1.Ka6!
      • threat
        • 2.Sb6#
      • 1...bxa4
        • 2.c4#
      • 1...Sc6
        • 2.Qg8#
      • 1...e3
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • R(b);N_GUARD::S(B)
    • R(b);N_GUARD::S(B),XR(b)
    • S(d);S_CUTR(b)::S(B)
    • S(h);OGATE::QAB(E)
    • S(h);N_GUARD,SBLOCK::QAB1(E)
    • P(c);S_CUTR(b)::S(B)
    • P(e);N_GUARD,XS(B)::P(A)
  • Tries
    • Try
      • K(C);P-FLIGHT,XP(e)
      • Threat
        • DUALS(3)
      • Refutation
        • R(b);CHECK
    • Try
      • K(C);S_FLIGHT
      • Threat
        • S(B)
      • Vars
        • P(e);N_GUARD,XS(B)::P(A)
        • P(c);S_CUTR(b)::S(B)
      • Refutation
        • S(h);CHECK
    • Try
      • Q(E);CHECK
      • Refutation
        • S(d);XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(f);OGATE,S_FLIGHT::QAR2(E),XP(c)
        • S(h);OGATE,P_SPINS(h)::QAB(E)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • K(C);P-FLIGHT
    • Threat
      • S(B)
    • Vars
      • P(e);N_GUARD,XS(B)::P(A)
      • S(h);OGATE,SBLOCK::QAB(E)
      • P(c);S_CUTR(b)::S(B)
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