MESON Chess Problem Database

Problem Display
PID: 276100 (8/4B1p1/Rb2N3/1b1pk1N1/1r1p2P1/Qn2p1K1/3pB3/8 w - - 0 1)

Armeni, Alberto

Pat a Mat, 2003

8/4B1p1/Rb2N3/1b1pk1N1/1r1p2P1/Qn2p1K1/3pB3/8

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Qd6#
    • 1...Rc4
      • 2.Qd6#
  • Tries
    • 1.Sf3+?
      • 1...Ke4
        • 2.Seg5#
      • 1...Kxe6!
    • 1.Sf7+?
      • 1...Ke4
        • 2.Seg5#
      • 1...Kxe6!
    • 1.Sf4?
      • threat
        • 2.Sg6#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Be8
        • 2.Sd3#
      • 1...g6
        • 2.Sxg6#
      • 1...d3!
    • 1.Sc5?
      • threat
        • 2.Sf3#
        • 2.Sf7#
      • 1...Bxe2
        • 2.Sd7#
        • 2.Sf7#
      • 1...Bxc5
        • 2.Re6#
      • 1...d3
        • 2.Sf3#
      • 1...Be8
        • 2.Sd3#
        • 2.Sf3#
      • 1...Sxc5!
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Sdf3#
      • 1...Kxd4
        • 2.Qb2#
      • 1...Rxd4
        • 2.Qd6#
      • 1...Bxe2
        • 2.Sc6#
      • 1...Bxd4
        • 2.Re6#
      • 1...Sxd4
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(d);OGATE::QAB1(B)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(h);P-FLIGHT::S(G)
      • Refutation
        • K(h);P-FLIGHT,P_SPINB(i),XS(G)
    • Try
      • S(E);CHECK
      • Vars
        • K(h);P-FLIGHT::S(G)
      • Refutation
        • K(h);P-FLIGHT,P_SPINB(i),XS(G)
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • B(f);N_GUARD::S(G),XB(f)
        • B(f);N_GUARD::S(G)
        • P(j);::S(G),XP(j)
      • Refutation
        • P(e);
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(i);OGATE,XS(G)::R1(F)
        • P(e);::S(E)
      • Refutation
        • S(b);XS(G)
  • Actual
    • S(G);XP(e)
    • Threat
      • S(G)
    • Vars
      • K(h);OGATEB,S_FLIGHT,XS(G)::QAB(B)
      • R(d);OGATE,SBLOCK,XS(G)::QAB1(B)
      • B(f);N_GUARD,XB(A)::S(G)
      • B(i);OGATE,SBLOCK,XS(G)::R1(F)
      • S(b);OGATE,XS(G)::QAR2(B),XP(c)
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