MESON Chess Problem Database

Problem Display
PID: 36232 (b2bR1QB/3ppp2/8/1Bpk4/2N5/3p1R2/5P2/7K w - - 0 1)

Salazar Lopez, Francisco

2nd Prize, Die Schwalbe, 1967

b2bR1QB/3ppp2/8/1Bpk4/2N5/3p1R2/5P2/7K

#2

8 + 8

3772 FIDE Album (1965-1967) 1976

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qxf7#
  • Tries
    • 1.Rxe7?
      • threat
        • 2.Rxd3#
        • 2.Rf5#
        • 2.Qxf7#
      • 1...Bc7
        • 2.Rxd3#
        • 2.Qxf7#
        • 2.Qxa8#
      • 1...d2
        • 2.Rd3#
        • 2.Rf5#
        • 2.Qxf7#
      • 1...Bxe7!
    • 1.Qxf7+?
      • 1...Ke4
        • 2.Sd2#
        • 2.Sd6#
        • 2.Re3#
        • 2.Rf4#
        • 2.Qf5#
      • 1...e6!
    • 1.Qg2?
      • threat
        • 2.Re3#
      • 1...Ke4
        • 2.Rxf7#
      • 1...Ke6
        • 2.Rf6#
      • 1...e5
        • 2.Rxd3#
      • 1...f6!
    • 1.Qg4?
      • threat
        • 2.Rxd3#
      • 1...d2
        • 2.Rd3#
      • 1...f5!
    • 1.Qg5+?
      • 1...Ke4
        • 2.Sd2#
        • 2.Re3#
        • 2.Rf4#
        • 2.Qf5#
      • 1...Ke6
        • 2.Qe5#
        • 2.Qf5#
      • 1...e5
        • 2.Qxe5#
      • 1...f5!
  • Keys
    • 1.Rxf7!
      • threat
        • 2.Rfxe7#
      • 1...Ke6+
        • 2.Rf3#
      • 1...Ke4
        • 2.Qg2#
      • 1...e5
        • 2.Rf4#
      • 1...e6
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(f),P_PINR(C),P_SPINP(e),S_FLIGHT::QAB1(G),XP(f)
  • Tries
    • Try
      • R(F);XP(e)
      • Threat
        • DUALS(3)
      • Refutation
        • B(h);XR(F)
    • Try
      • Q(G);CHECK,XP(f)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • Q(G);N_PINP(f)
      • Threat
        • QAB(G)+R(C)
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::QAB(G)+R(C),XP(f)
        • K(c);P_SPINP(e),S_FLIGHT::R1(C)
        • P(e);::QAB(G)+R(C),DCHECK,XP(a)
      • Refutation
        • P(f);
    • Try
      • Q(G);N_PINP(f)
      • Threat
        • R(C),XP(a)
      • Vars
        • P(a);::R(C)
      • Refutation
        • P(f);
    • Try
      • Q(G);CHECK,N_PINP(f)
      • Vars
        • P(e);P_SPINP(e)::QAR1(G),XP(e)
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • R(C);XP(f)
    • Threat
      • QAB(G)+R(C),XP(e)
    • Vars
      • K(c);CHECK,P_SPINP(e),S_FLIGHT::QAB(G)+R(C)
      • K(c);P_SPINP(e),S_FLIGHT::QAB(G)
      • P(e);N_GUARD::QAB(G)+R(C)
      • P(e);::QAB(G)
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