MESON Chess Problem Database

Problem Display
PID: 179104 (8/BK1p4/2P1r1b1/1PR1n1R1/pp1k2p1/1rn3N1/5P2/Q3N3 w - - 0 1)

Feldmann, Tibor (aka Florian, Tibor)

Magasinet, 1937

8/BK1p4/2P1r1b1/1PR1n1R1/pp1k2p1/1rn3N1/5P2/Q3N3

#2

10 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Se2#
    • 1...Sd3
      • 2.Sc2#
      • 2.Rgd5#
    • 1...Sf3
      • 2.Rxc3#
      • 2.Rgd5#
    • 1...Sc4
      • 2.Rcd5#
      • 2.Rgd5#
    • 1...Sxc6
      • 2.Rxc6#
      • 2.Rgd5#
    • 1...Sf7
      • 2.Rxc3#
      • 2.Rgd5#
    • 1...d5
      • 2.Rxc3#
  • Tries
    • 1.Rc4+?
      • 1...Kd5
        • 2.Rd4#
      • 1...Kxc4!
    • 1.Rxg4+?
      • 1...Be4
        • 2.Se2#
        • 2.Sf5#
        • 2.Rxe4#
      • 1...Sxg4!
    • 1.Qd1+?
      • 1...Bd3
        • 2.Sc2#
      • 1...Sd3
        • 2.Sc2#
      • 1...Sxd1!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qe3#
      • 1...Sxb5
        • 2.Rxb5#
      • 1...Sxc6
        • 2.Rxc6#
      • 1...Sb1
        • 2.Rcxe5#
      • 1...Sd1
        • 2.Rcxe5#
      • 1...Sa2
        • 2.Rcxe5#
      • 1...Se2
        • 2.Rcxe5#
      • 1...Se4
        • 2.Se2#
      • 1...Sd5
        • 2.Rc4#
      • 1...Sd3
        • 2.Sc2#
      • 1...Sf3
        • 2.Rxc3#
      • 1...Sc4
        • 2.Rcd5#
      • 1...Sf7
        • 2.Rxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 2
  • Sets
    • B(i);P_PINP(H),SBLOCK::S(D)
    • P(j);SBLOCK::B(I)+R(F),XS(b)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(e);N_SPINS(b),P-FLIGHT,P_SPINS(g)::R1(F)
      • Refutation
        • K(e);N_SPINS(b),P-FLIGHT,XR(F)
    • Try
      • R(G);CHECK,XP(f)
      • Refutation
        • S(g);XR(G)
    • Try
      • Q(A);CHECK,N_PINS(b)
      • Vars
        • B(i);P_SPINB(i)::S(B)
        • S(g);P_SPINS(g)::S(B)
      • Refutation
        • S(b);XQ(A)
  • Actual
    • Q(A);N_PINS(b)
    • Threat
      • QAB1(A)
    • Vars
      • S(b);OGATE,XP(E)::B(I)+R(F),XS(b)
      • S(g);OGATE,XP(H)::B(I)+R(F),XS(g)
      • S(b);::B(I)+R(F),XS(g)
      • S(b);N_GUARD,SBLOCK::S(D)
      • S(b);SBLOCK::B(I)+R(F),DCHECK
      • S(g);SBLOCK,S_CUTB(i)::S(B)
      • S(g);::B(I)+R(F),XS(b)
      • S(g);SBLOCK::B(I)+R(F),DCHECK
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