MESON Chess Problem Database

Problem Display
PID: 187680 (8/1prp4/n1b2B2/n1NP4/5p2/1PKB1Pp1/6Rb/k2N1R1r w - - 0 1)

Neukomm, Gyula (Julius) R

La Strategie, 1909

8/1prp4/n1b2B2/n1NP4/5p2/1PKB1Pp1/6Rb/k2N1R1r

#2

10 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Se3#
    • 1...Sxb3
      • 2.Kxb3#
      • 2.Sxb3#
    • 1...Sc4
      • 2.Kxc4#
    • 1...Sb4
      • 2.Kxb4#
    • 1...Sxc5
      • 2.Kb4#
    • 1...Sb8
      • 2.Kb4#
  • Tries
    • 1.Sb2+?
      • 1...Ka2
        • 2.Sc4#
      • 1...Rxf1!
    • 1.Rff2?
      • threat
        • 2.Ra2#
      • 1...Sb4
        • 2.Kxb4#
      • 1...gxf2!
  • Keys
    • 1.Kd4!
      • threat
        • 2.Ke4#
      • 1...Bg1+
        • 2.Se3#
      • 1...Sxb3+
        • 2.Sxb3#
      • 1...Bxd5
        • 2.Kxd5#
      • 1...Sxc5
        • 2.Kxc5#
      • 1...Sc4
        • 2.Kxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(c);S_CUTR(b)::R(B)+S(A)
    • S(f);::B(J)+K(E),XS(f)
    • S(g);::B(J)+K(E),XS(g)
    • S(g);XS(H)::B(J)+K(E)
    • S(g);::B(J)+K(E)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(a);P-FLIGHT::R(C)+S(A)
      • Refutation
        • R(b);XR(B)
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • S(g);::B(J)+K(E),XS(g)
      • Refutation
        • P(d);XR(B)
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • B(J)+K(E)
    • Vars
      • B(c);CHECK,S_CUTR(b)::R(B)+S(A)
      • S(f);CHECK,XP(D)::S(H),XS(f)
      • B(h);XP(I)::B(J)+K(E),XB(h)
      • S(g);XS(H)::B(J)+K(E),XS(g)
      • S(f);::B(J)+K(E),XS(f)
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