MESON Chess Problem Database

Problem Display
PID: 229009 (b7/7K/8/1n4B1/1pQ2N2/1r1Pkp1R/1p4P1/1n1R3N w - - 0 1)

Cassinelli, A

2nd HM., El Ajedrez Argentino, 1926

b7/7K/8/1n4B1/1pQ2N2/1r1Pkp1R/1p4P1/1n1R3N

#2

9 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd3
      • 2.Rxd3#
      • 2.Qxd3#
    • 1...Be4+
      • 2.Qxe4#
    • 1...Sd2
      • 2.Re1#
    • 1...Sa3
      • 2.Qc5#
    • 1...Sc3
      • 2.Qc5#
    • 1...Sd6
      • 2.Qc5#
    • 1...Sa7
      • 2.Qc5#
    • 1...Sc7
      • 2.Qc5#
  • Tries
    • 1.Bh4?
      • threat
        • 2.Bf2#
      • 1...Be4+
        • 2.Qxe4#
      • 1...Sd4!
    • 1.Qe6+?
      • 1...Be4+
        • 2.Qxe4#
      • 1...Kd4!
  • Keys
    • 1.d4!
      • threat
        • 2.Qe2#
      • 1...Be4+
        • 2.Sg6#
      • 1...Ke4
        • 2.Qe6#
      • 1...Sxd4
        • 2.Qxd4#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Sd2
        • 2.Re1#
      • 1...S1c3
        • 2.Qd3#
      • 1...S5c3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • B(h);CHECK,N_GUARD::QAR1(F),XB(h)
    • S(a);SBLOCK::R(A)
    • S(g);N_GUARD::QAB(F)
  • Tries
    • Try
      • B(H);
      • Threat
        • B(H)
      • Vars
        • B(h);CHECK,N_GUARD::QAR1(F),XB(h)
      • Refutation
        • S(g);
    • Try
      • Q(F);CHECK
      • Vars
        • B(h);CHECK,N_GUARD,P_SPINB(h)::QAR1(F),XB(h)
      • Refutation
        • K(d);N_SPINP(e),S_FLIGHT
  • Actual
    • P(D);
    • Threat
      • QAR1(F)
    • Vars
      • B(h);CHECK,SBLOCK::B(H)+S(G)
      • K(d);N_SPINP(e),P-FLIGHT::QAR2(F)
      • S(g);OGATE,XP(D)::QAB1(F),XS(g)
      • R(c);N_GUARD::QAR1(F),XR(c)
      • S(a);SBLOCK::R(A)
      • S(a);S_CUTR(c)::QAR1(F)
      • S(g);S_CUTR(c)::QAR1(F)
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