MESON Chess Problem Database

Problem Display
PID: 165245 (8/8/4n3/3R1R2/2pPBP2/2p1k1r1/K1Q2qbN/4bnB1 w - - 0 1)

Salamanca, Tomas

L'Alfiere di Re, 1925

8/8/4n3/3R1R2/2pPBP2/2p1k1r1/K1Q2qbN/4bnB1

#2

9 + 9

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Sg4#
    • 1...Rh3
      • 2.Sg4#
    • 1...Rg4
      • 2.Sxg4#
    • 1...Bh1
      • 2.Sxf1#
    • 1...Bf3
      • 2.Sxf1#
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qe2#
      • 1...Rxf3
        • 2.Sg4#
      • 1...Bxf3
        • 2.Sxf1#
      • 1...Sxd4
        • 2.Rde5#
      • 1...Sxf4
        • 2.Rfe5#
      • 1...Bd2
        • 2.Qe4#
      • 1...Sd2
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(g);N_GUARD::S(D)
    • R(g);N_GUARD::S(D),XR(g)
    • B(d);N_GUARD::S(D),XS(b)
  • Actual
    • B(F);
    • Threat
      • QAR1(C)
    • Vars
      • R(g);N_GUARD,SBLOCK,XB(F)::S(D)
      • B(d);N_GUARD,SBLOCK,XB(F)::S(D),XS(b)
      • S(i);SBLOCK,XP(E)::R(H)
      • S(i);SBLOCK,XP(G)::R(I)
      • B(a);N_PINQ(C),SBLOCK::QAR1(C)
      • S(b);N_PINQ(C)::QAR2(C),XP(e)
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