MESON Chess Problem Database

Problem Display
PID: 169089 (R1Nk3K/2pp1B2/1Q5N/8/qb1Bbr2/8/8/3R4 w - - 0 1)

Mladenovic, Miodrag

2nd Prize, SuperProblem 077. TT, 2013

R1Nk3K/2pp1B2/1Q5N/8/qb1Bbr2/8/8/3R4

#2

8 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...cxb6
      • 2.Bxb6#
  • Tries
    • 1.Sa7+?
      • 1...Ke7
        • 2.Re8#
      • 1...Bxa8!
    • 1.Bf6+?
      • 1...Be7
        • 2.Bxe7#
      • 1...Rxf6!
    • 1.Qf6+?
      • 1...Be7
        • 2.Qxe7#
      • 1...Rxf6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qe8#
      • 1...Rxf7
        • 2.Sxf7#
      • 1...dxe6
        • 2.Bf6#
      • 1...c5
        • 2.Qb6#
      • 1...c6
        • 2.Bb6#
      • 1...Be7
        • 2.Qxe7#
      • 1...d5
        • 2.Sa7#
      • 1...d6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • P(e);N_SPINP(e),OGATE,XQ(C)::B(B),XP(e)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(g);N_SPINP(e),OGATE,S_FLIGHT::R1(F)
      • Refutation
        • B(c);XR(F)
    • Try
      • B(B);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::B(B),XB(b)
      • Refutation
        • R(d);XB(B)
    • Try
      • Q(C);CHECK,N_PINP(e)
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAB1(C),XB(b)
      • Refutation
        • R(d);XQ(C)
  • Actual
    • Q(C);N_PINP(e)
    • Threat
      • QAR1(C)
    • Vars
      • R(d);XB(E)::S(D),XR(d)
      • P(f);XQ(C)::R(A)+B(B),DCHECK
      • P(e);OGATEB::QAB(C)
      • P(e);OGATEB::B(B)
      • B(b);N_GUARD::QAB1(C),XB(b)
      • P(f);S_CUTB(c)::R(F)+S(G)
      • P(f);S_CUTB(b)::QAB1(C)
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