MESON Chess Problem Database

Problem Display
PID: 169908 (1q1r1b2/3pkPp1/1BR1N1K1/r4B2/3N2p1/1Q6/8/3R4 w - - 0 1)

Peris Pardo, Julio

2nd Prize, SEPA TT, 1945

1q1r1b2/3pkPp1/1BR1N1K1/r4B2/3N2p1/1Q6/8/3R4

#2

9 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Bxd8#
    • 1...Qg3
      • 2.Bxd8#
    • 1...Qf4
      • 2.Bxd8#
    • 1...Qe5
      • 2.Bxd8#
    • 1...Qd6
      • 2.Bxd8#
    • 1...Qa7
      • 2.Bxd8#
    • 1...Qb7
      • 2.Bxd8#
    • 1...Rxf5
      • 2.Sxf5#
    • 1...dxc6
      • 2.Sxc6#
    • 1...dxe6
      • 2.Qxe6#
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qg5#
      • 1...Rxf5
        • 2.Sxf5#
      • 1...dxc6
        • 2.Sxc6#
      • 1...dxe6
        • 2.Qxe6#
      • 1...d5
        • 2.Sc7#
      • 1...d6
        • 2.Sc5#
      • 1...Qf4
        • 2.Bxd8#
      • 1...Qe5
        • 2.Bxd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(f);N_GUARD::B(E),XR(g)
    • Q(f);N_GUARD,P_PINS(G)::B(E),XR(g)
    • R(b);XB(D)::S(C),XR(b)
    • P(c);XR(F)::S(C),XP(c)
    • P(c);OGATE,XS(G)::QAR1(B),XP(c)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • R(b);XB(D)::S(C),XR(b)
      • P(c);XR(F)::S(C),XP(c)
      • P(c);OGATE,P_SPINP(c),XS(G)::QAR1(B),XP(c)
      • P(c);S_CUTR(b)::QAR(B)+S(G)
      • P(c);S_CUTQ(f)::QAR(B)+S(G)
      • Q(f);N_GUARD::B(E),XR(g)
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