MESON Chess Problem Database

Problem Display
PID: 199821 (8/p5pQ/1B2P3/p2N4/K1kPrN2/1RP1r3/P7/8 w - - 0 1)

Gockel, Hubert

Die Schwalbe, 2019

8/p5pQ/1B2P3/p2N4/K1kPrN2/1RP1r3/P7/8

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3
      • 2.Rxc3#
    • 1...Rxd4
      • 2.Sxe3#
    • 1...Rxf4
      • 2.Sxe3#
    • 1...axb6
      • 2.Sxb6#
    • 1...g5
      • 2.Qc7#
    • 1...g6
      • 2.Qc7#
  • Tries
    • 1.Bxa5?
      • threat
        • 2.Rb4#
      • 1...Rxf4
        • 2.Sxe3#
      • 1...Rxd4!
    • 1.Bxa7?
      • threat
        • 2.Sb6#
      • 1...Rxc3
        • 2.Rxc3#
      • 1...Rxd4
        • 2.Sxe3#
      • 1...Rxe6!
    • 1.Qg8?
      • threat
        • 2.Qc8#
      • 1...Rxe6
        • 2.Sxe3#
      • 1...Rxf4!
  • Keys
    • 1.Kxa5!
      • threat
        • 2.Rb4#
      • 1...axb6+
        • 2.Sxb6#
      • 1...Rxf4
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(a);OGATE,XP(C)::R1(B),XR(a)
    • R(c);N_GUARD,XP(E)::S(G),XR(a)
    • R(c);N_GUARD,XS(F)::S(G),XR(a)
    • P(e);XB(H)::S(G),XP(e)
    • P(f);OGATE::QAR(J)
  • Tries
    • Try
      • B(H);XP(d)
      • Threat
        • R1(B)
      • Vars
        • R(c);N_GUARD,XS(F)::S(G),XR(a)
      • Refutation
        • R(c);XP(E)
    • Try
      • B(H);XP(e)
      • Threat
        • S(G)
      • Vars
        • R(a);OGATE,XP(C)::R1(B),XR(a)
        • R(c);N_GUARD,XP(E)::S(G),XR(a)
      • Refutation
        • R(c);XP(I)
    • Try
      • Q(J);
      • Threat
        • QAR(J)
      • Vars
        • R(c);N_GUARD,XP(I)::S(G),XR(a)
      • Refutation
        • R(c);XS(F)
  • Actual
    • K(D);P-FLIGHT,XP(d)
    • Threat
      • R1(B)
    • Vars
      • P(e);CHECK,XB(H)::S(G),XP(e)
      • R(c);N_GUARD,XS(F)::S(G),XR(a)
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