MESON Chess Problem Database

Problem Display
PID: 12439 (4b3/5N2/2p1Pp2/Kpk5/3N3R/1B2p3/1p3r2/1Q1R4 w - - 0 1)

Salazar Lopez, Francisco

4th Prize, Mat, 1979

4b3/5N2/2p1Pp2/Kpk5/3N3R/1B2p3/1p3r2/1Q1R4

#2

8 + 8

3750 FIDE Album (1977-1979) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Qc2#
    • 1...Rc2
      • 2.Qxc2#
    • 1...Rd2
      • 2.Qf5#
    • 1...Re2
      • 2.Qf5#
    • 1...Rg2
      • 2.Qf5#
    • 1...Rh2
      • 2.Qf5#
    • 1...Rf3
      • 2.Qc2#
    • 1...Rf4
      • 2.Qc2#
    • 1...Rf5
      • 2.Qc2#
      • 2.Qxf5#
    • 1...e2
      • 2.Qc2#
  • Tries
    • 1.Se2?
      • threat
        • 2.Qc2#
      • 1...Rxe2
        • 2.Qf5#
      • 1...Rf4!
    • 1.Sf3?
      • threat
        • 2.Qf5#
      • 1...Rxf3
        • 2.Qc2#
      • 1...Rc2
        • 2.Qxc2#
      • 1...f5
        • 2.Qxf5#
      • 1...Rd2!
    • 1.Sd6?
      • threat
        • 2.Se4#
        • 2.Sb7#
      • 1...Rd2
        • 2.Sb7#
      • 1...Rf4
        • 2.Sb7#
      • 1...Bg6
        • 2.Sb7#
      • 1...f5
        • 2.Sb7#
      • 1...Kxd6!
    • 1.Rd2?
      • threat
        • 2.Qc2#
      • 1...Rxd2
        • 2.Qf5#
      • 1...Bxf7!
    • 1.Rf4?
      • threat
        • 2.Qf5#
      • 1...Rxf4
        • 2.Qc2#
      • 1...Rc2
        • 2.Rf5#
        • 2.Qxc2#
      • 1...f5
        • 2.Qxf5#
      • 1...Bxf7!
    • 1.Rh5+?
      • 1...Rf5
        • 2.Rxf5#
        • 2.Qc2#
        • 2.Qxf5#
      • 1...f5!
  • Keys
    • 1.Ba2!
      • threat
        • 2.Sb3#
      • 1...Rd2
        • 2.Qf5#
      • 1...Rf4
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • R(b);N_GUARD::QAR(A)
    • R(b);N_GUARD::QAR(A),XR(b)
    • P(c);S_CUTR(b)::QAR(A)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR(A)
      • Vars
        • R(b);N_GUARD,XS(D)::QAR(A)
      • Refutation
        • R(b);
    • Try
      • S(D);
      • Threat
        • QAR(A)
      • Vars
        • R(b);N_GUARD,XS(D)::QAR(A)
        • R(b);N_GUARD::QAR(A),XR(b)
        • P(g);::QAR(A),XP(g)
      • Refutation
        • R(b);
    • Try
      • S(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::S(H)
        • B(h);::S(H)
        • P(g);::S(H)
      • Refutation
        • K(e);S_FLIGHT,XS(H)
    • Try
      • R(B);
      • Threat
        • QAR(A)
      • Vars
        • R(b);N_GUARD,XR(B)::QAR(A)
      • Refutation
        • B(h);XS(H)
    • Try
      • R(E);
      • Threat
        • QAR(A)
      • Vars
        • R(b);N_GUARD,XR(E)::QAR(A)
        • P(g);::QAR(A),XP(g)
      • Refutation
        • B(h);XS(H)
    • Try
      • R(E);CHECK
      • Refutation
        • P(g);P_SPINP(g)
  • Actual
    • B(C);
    • Threat
      • S(D)
    • Vars
      • R(b);N_GUARD::QAR(A)
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