MESON Chess Problem Database

Problem Display
PID: 93309 (8/3p3p/3P3B/1p2NR1P/pP1k2P1/K1pP4/P1P4p/N2Rn2B w - - 0 1)

Musante, Horacio Luis

1st Prize, Arbejder Skak TT, 1954

8/3p3p/3P3B/1p2NR1P/pP1k2P1/K1pP4/P1P4p/N2Rn2B

#2

14 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc2+
      • 2.Sxc2#
    • 1...Sg2
      • 2.Sf3#
    • 1...Sxd3
      • 2.Rxd3#
    • 1...Sf3
      • 2.Sxf3#
  • Tries
    • 1.Bc1?
      • 1...Sxc2+
        • 2.Sxc2#
      • 1...Sxd3
        • 2.Rxd3#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...h6!
    • 1.Bf4?
      • 1...Sxc2+
        • 2.Sxc2#
      • 1...Sxd3
        • 2.Rxd3#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...h6!
    • 1.Bg5?
      • 1...Sxc2+
        • 2.Sxc2#
      • 1...Sxd3
        • 2.Rxd3#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...h6!
    • 1.Rb1?
      • 1...Sxc2+
        • 2.Sxc2#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...Sxd3!
    • 1.Rc1?
      • 1...Sxc2+
        • 2.Sxc2#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...Sxd3!
    • 1.Rd2?
      • 1...Sxc2+
        • 2.Sxc2#
      • 1...Sxd3
        • 2.Rxd3#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...cxd2!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Be3#
        • 2.Bg7#
        • 2.Rf4#
        • 2.Rd5#
      • 1...Sxc2+
        • 2.Sxc2#
      • 1...Sxd3
        • 2.Rf4#
      • 1...bxc4
        • 2.Rd5#
      • 1...Sg2
        • 2.Bg7#
      • 1...Sf3
        • 2.Be3#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);CHECK,XP(E)::S(A),XS(a)
    • S(a);N_GUARD::S(J)
    • S(a);OGATE,P_SPINS(a),XP(G)::R1(B),XS(a)
    • S(a);N_GUARD::S(J),XS(a)
  • Tries
    • Try
      • B(N);
      • Vars
        • S(a);CHECK,XP(E)::S(A),XS(a)
        • S(a);OGATE,P_SPINS(a),XP(G)::R1(B),XS(a)
        • S(a);N_GUARD::S(J)
        • S(a);N_GUARD::S(J),XS(a)
      • Refutation
        • P(h);
    • Try
      • B(N);
      • Vars
        • S(a);CHECK,XP(E)::S(A),XS(a)
        • S(a);OGATE,P_SPINS(a),XP(G)::R1(B),XS(a)
        • S(a);N_GUARD::S(J)
        • S(a);N_GUARD::S(J),XS(a)
      • Refutation
        • P(h);
    • Try
      • B(N);
      • Vars
        • S(a);CHECK,XP(E)::S(A),XS(a)
        • S(a);OGATE,P_SPINS(a),XP(G)::R1(B),XS(a)
        • S(a);N_GUARD::S(J)
        • S(a);N_GUARD::S(J),XS(a)
      • Refutation
        • P(h);
    • Try
      • R(B);
      • Vars
        • S(a);CHECK,XP(E)::S(A),XS(a)
        • S(a);N_GUARD::S(J)
        • S(a);N_GUARD::S(J),XS(a)
      • Refutation
        • S(a);XP(G)
    • Try
      • R(B);
      • Vars
        • S(a);CHECK,XP(E)::S(A),XS(a)
        • S(a);N_GUARD::S(J)
        • S(a);N_GUARD::S(J),XS(a)
      • Refutation
        • S(a);XP(G)
    • Try
      • R(B);
      • Vars
        • S(a);CHECK,XP(E)::S(A),XS(a)
        • S(a);OGATE,P_SPINS(a),XP(G)::R1(B),XS(a)
        • S(a);N_GUARD::S(J)
        • S(a);N_GUARD::S(J),XS(a)
      • Refutation
        • P(c);XR(B)
  • Actual
    • S(J);
    • Threat
      • DUALS(4)
    • Vars
      • S(a);CHECK,XP(E)::S(A),XS(a)
      • S(a);P_SPINS(a),XP(G)::R(K)
      • P(f);XS(J)::R1(K)
      • S(a);::B(N)
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