MESON Chess Problem Database

Problem Display
PID: 215137 (8/8/4bK2/1PR5/1p1kP3/3PN3/1n1Q4/8 w - - 0 1)

Manskopf, Johannes Karl Alvin Georg

Funkschach, 1926

8/8/4bK2/1PR5/1p1kP3/3PN3/1n1Q4/8

#2

7 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.Rd5#
    • 1...Bg4
      • 2.Rd5#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Bf5
      • 2.Rd5#
    • 1...Bd7
      • 2.Rd5#
    • 1...Bc8
      • 2.Rd5#
  • Tries
    • 1.Kxe6?
      • threat
        • 2.Rd5#
      • 1...Sxd3
        • 2.Rc4#
      • 1...Kxc5!
    • 1.Sf5+?
      • 1...Bxf5
        • 2.Rd5#
      • 1...Kxc5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qe3#
      • 1...Kxc5
        • 2.Qxb4#
      • 1...Bxd5
        • 2.Rxd5#
      • 1...Sd1
        • 2.Rc4#
      • 1...Sc4
        • 2.Rxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(d);N_GUARD::R1(F)
    • B(d);N_GUARD::R1(F),XB(d)
  • Tries
    • Try
      • K(G);P-FLIGHT,XB(d)
      • Threat
        • R1(F)
      • Vars
        • S(a);N_GUARD,P_SPINS(a),XP(B)::R1(F)
      • Refutation
        • K(c);S_FLIGHT,XR(F)
    • Try
      • S(C);CHECK
      • Vars
        • B(d);XS(C)::R1(F)
      • Refutation
        • K(c);S_FLIGHT,XR(F)
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(c);S_FLIGHT,XR(F)::QAB1(A),XP(b)
      • B(d);OGATE,XS(C)::R1(F),XB(d)
      • S(a);N_GUARD::R1(F)
      • S(a);N_GUARD::R1(F),XS(a)
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