MESON Chess Problem Database

Problem Display
PID: 204362 (5b2/p2r4/7R/1pNk2p1/1Q1B2NR/KP2pP2/1pp5/1bqr1n2 w - - 0 1)

Larsen, Karl Adolf Koefoed

Comm., Centurini/Guidelli MT, 1925

5b2/p2r4/7R/1pNk2p1/1Q1B2NR/KP2pP2/1pp5/1bqr1n2

#2

9 + 13

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc5
      • 2.Qxc5#
    • 1...Sd2
      • 2.Sxe3#
  • Keys
    • 1.Qxb5!
      • threat
        • 2.Qc4#
      • 1...Bxc5+
        • 2.Qxc5#
      • 1...Kxd4
        • 2.Qc4#
      • 1...Rxd4
        • 2.Qc6#
      • 1...Bxh6
        • 2.Qxd7#
      • 1...Rd6
        • 2.Se6#
      • 1...Bd6
        • 2.Sf6#
      • 1...Sd2
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(m);OGATE,P_PINQ(D),XS(H)::QAR1(D),XB(m)
    • S(d);N_GUARD,S_CUTQ(b)::S(F),XP(g)
  • Actual
    • Q(D);P_SPINS(H),XP(h)
    • Threat
      • QAB1(D)
    • Vars
      • B(m);CHECK,OGATE,P_SPINB(m),XS(H)::QAR1(D),XB(m)
      • K(i);P-FLIGHT,XB(E)::QAR1(D)
      • R(c);SBLOCK,XB(E)::QAB1(D)
      • B(m);N_GUARD,N_PINS(H),XR(I)::QAR2(D),XR(l)
      • R(l);N_PINS(H),SBLOCK::QAR(D)+S(H)
      • B(m);SBLOCK::S(F)
      • S(d);N_GUARD,S_CUTQ(b)::S(F),XP(g)
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