MESON Chess Problem Database

Problem Display
PID: 270443 (3rb2B/1Npp4/BPNR4/PP4K1/1Pk1P1p1/6r1/4P2b/1R6 w - - 0 1)

Maleika, Gerhard

Probleemblad, 2022

3rb2B/1Npp4/BPNR4/PP4K1/1Pk1P1p1/6r1/4P2b/1R6

#2

13 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Rd4#
    • 1...Rd3
      • 2.exd3#
    • 1...cxd6
      • 2.Sxd6#
    • 1...dxc6
      • 2.bxc6#
  • Tries
    • 1.Rc1+?
      • 1...Rc3
        • 2.Rxc3#
      • 1...Kb3!
    • 1.Rd3?
      • threat
        • 2.Se5#
        • 2.Rc1#
      • 1...dxc6
        • 2.bxc6#
      • 1...Rg1
        • 2.Rc3#
      • 1...Rg2
        • 2.Rc1#
        • 2.Rc3#
      • 1...Re3
        • 2.Rc1#
      • 1...Rf3
        • 2.Rc1#
      • 1...Rh3
        • 2.Rc1#
      • 1...d6
        • 2.Rc1#
      • 1...Rxd3!
  • Keys
    • 1.Ba1!
      • threat
        • 2.Se5#
        • 2.Rd4#
      • 1...cxd6
        • 2.Sxd6#
      • 1...dxc6
        • 2.bxc6#
      • 1...Rg1
        • 2.Rd4#
      • 1...Rg2
        • 2.Rd4#
      • 1...Ra3
        • 2.Rd4#
      • 1...Rb3
        • 2.Rd4#
      • 1...Rc3
        • 2.Rd4#
      • 1...Rd3
        • 2.exd3#
      • 1...Re3
        • 2.Rd4#
      • 1...Rf3
        • 2.Rd4#
      • 1...Rh3
        • 2.Rd4#
      • 1...Bg1
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK::R1(K)
    • R(b);OGATE::P(B),XR(b)
    • P(e);XR(K)::S(L),XP(e)
    • P(f);OGATE,XS(J)::B(H)+P(F),XP(f)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::R1(A),XR(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(K);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);OGATE,XS(J)::B(H)+P(F),XP(f)
        • R(b);N_GUARD::R1(K)
        • R(b);::R(A)
        • P(f);::R(A)
      • Refutation
        • R(b);XR(K)
  • Actual
    • B(M);
    • Threat
      • DUALS(2)
    • Vars
      • P(e);XR(K)::S(L),XP(e)
      • P(f);OGATE,XS(J)::B(H)+P(F),XP(f)
      • R(b);::R1(K)
      • R(b);OGATE::P(B),XR(b)
      • B(a);::S(J)
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