MESON Chess Problem Database

Problem Display
PID: 159139 (3Q4/8/p7/2b5/k1K5/8/n7/R7 w - - 0 1)

Abdullayev, Elmar

Sachmatija, 2013

3Q4/8/p7/2b5/k1K5/8/n7/R7

#2

3 + 4

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Rxa2#
    • 1...Bf2
      • 2.Rxa2#
    • 1...Be3
      • 2.Rxa2#
    • 1...Bd4
      • 2.Rxa2#
    • 1...Bb6
      • 2.Rxa2#
    • 1...Ba7
      • 2.Rxa2#
  • Tries
    • 1.Qd1+?
      • 1...Ka3
        • 2.Qb3#
      • 1...Ka5!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qxa6#
      • 1...Ka3
        • 2.Qb3#
      • 1...Bxb6
        • 2.Rxa2#
      • 1...Bb4
        • 2.Qxb4#
      • 1...a5
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(c);N_GUARD::R(A),XS(a)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR2(C),XP(d)
    • Vars
      • K(b);P-FLIGHT::QAR1(C)
      • B(c);N_GUARD,XQ(C)::R(A),XS(a)
      • B(c);N_GUARD::QAR1(C),XB(c)
      • P(d);SBLOCK::QAB1(C)
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