MESON Chess Problem Database

Problem Display
PID: 116154 (5Q2/3N1R2/2p4b/r3B3/N1Bnk3/1R6/6n1/5b1K w - - 0 1)

Goldschmidt, Josef

Al Hamishmar, 1951

5Q2/3N1R2/2p4b/r3B3/N1Bnk3/1R6/6n1/5b1K

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Saxc5#
    • 1...Ra6
      • 2.Sac5#
    • 1...Ra7
      • 2.Sac5#
    • 1...Ra8
      • 2.Sac5#
    • 1...Be3
      • 2.Sc3#
    • 1...Se3
      • 2.Sc3#
    • 1...Sb5
      • 2.Sac5#
  • Tries
    • 1.Sdc5+?
      • 1...Kxe5
        • 2.Qb8#
      • 1...Rxc5!
    • 1.Re3+?
      • 1...Bxe3
        • 2.Sc3#
      • 1...Sxe3
        • 2.Sc3#
      • 1...Kxe3!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qxd4#
      • 1...Rxc5
        • 2.Saxc5#
      • 1...Sxb3
        • 2.Sc3#
      • 1...Be3
        • 2.Sc3#
      • 1...Sc2
        • 2.Sc3#
      • 1...Se2
        • 2.Bd3#
      • 1...Sf3
        • 2.Sc3#
      • 1...Sb5
        • 2.Qxc6#
      • 1...Sf5
        • 2.Sf6#
      • 1...Se6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • R(e);N_GUARD::S(C),XR(e)
    • R(e);N_GUARD::S(C)
    • B(g);SBLOCK::S(C)
    • S(b);SBLOCK::S(C)
    • S(c);S_CUTR(e)::S(C)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(d);P-FLIGHT,XB(E)::QAB(H)
      • Refutation
        • R(e);XS(F)
    • Try
      • R(B);CHECK
      • Vars
        • B(g);SBLOCK,XR(B)::S(C)
        • S(b);SBLOCK,XR(B)::S(C)
      • Refutation
        • K(d);P-FLIGHT,XR(B)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H),XS(c)
    • Vars
      • R(e);XQ(H)::S(C),XR(e)
      • S(c);XR(B)::S(C)
      • B(g);SBLOCK::S(C)
      • S(c);::S(C)
      • S(c);S_CUTB(a)::B(D)
      • S(c);N_GUARD,S_CUTR(e)::QAB(H),XP(f)
      • S(c);SBLOCK::S(F)
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