MESON Chess Problem Database

Problem Display
PID: 243497 (B7/n6R/4p3/N7/bP1k1r2/N3R1PK/5P1Q/n7 w - - 0 1)

Buchwald, Julius

Arbejder-Skak, 1952

B7/n6R/4p3/N7/bP1k1r2/N3R1PK/5P1Q/n7

#2

10 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4+
      • 2.Rxh4#
    • 1...Bd1
      • 2.Rd7#
    • 1...Bc2
      • 2.Rd7#
    • 1...Bd7
      • 2.Rxd7#
    • 1...Sb3
      • 2.Sc2#
    • 1...Sc6
      • 2.Rd7#
  • Tries
    • 1.Sc2+?
      • 1...Bxc2
        • 2.Rd7#
      • 1...Sxc2!
    • 1.Sc6+?
      • 1...Kd5
        • 2.Rd7#
      • 1...Sxc6
        • 2.Rd7#
      • 1...Bxc6!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qxa1#
      • 1...Rh4+
        • 2.Rxh4#
      • 1...Rxf2
        • 2.Qe4#
      • 1...Bd1
        • 2.Rd7#
        • 2.Qxd1#
      • 1...Bc6
        • 2.Qd1#
      • 1...Sc2
        • 2.Qd1#
      • 1...Sb3
        • 2.Sc2#
      • 1...Sb5
        • 2.Sc6#
      • 1...Sc6
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(d);CHECK,OGATEB::R(I),XR(d)
    • B(b);N_GUARD::R(I)
    • B(b);N_GUARD::R(I),XB(b)
    • S(a);N_GUARD,S_CUTB(b)::S(C)
    • S(f);S_CUTB(b)::R(I)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • B(b);XS(C)::R(I)
      • Refutation
        • S(a);XS(C)
    • Try
      • S(H);CHECK
      • Vars
        • K(c);P-FLIGHT::R(I)
        • S(f);XS(H)::R(I)
      • Refutation
        • B(b);XS(H)
  • Actual
    • Q(B);
    • Threat
      • QAB(B),XS(a)
    • Vars
      • R(d);CHECK,OGATEB::R(I),XR(d)
      • R(d);N_GUARD,XP(A)::QAR1(B)
      • B(b);N_GUARD::QAR(B)
      • S(a);S_CUTB(b)::QAR(B)
      • S(a);N_GUARD,S_CUTB(b)::S(C)
      • S(f);N_GUARD,S_CUTB(b)::S(H)
      • S(f);S_CUTB(b)::R(I)
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