MESON Chess Problem Database

Problem Display
PID: 102918 (2R5/2n5/8/Np6/1P1pp1Q1/3kP3/1R1B2p1/1K3b2 w - - 0 1)

Usmanov, Rashid R

Moscow Ty., 2006

2R5/2n5/8/Np6/1P1pp1Q1/3kP3/1R1B2p1/1K3b2

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bc1?
      • threat
        • 2.Rb3#
      • 1...Kc3
        • 2.Rb3#
      • 1...Sd5
        • 2.Qd1#
      • 1...dxe3!
    • 1.Be1?
      • threat
        • 2.Rb3#
      • 1...Kxe3
        • 2.Qg3#
      • 1...dxe3
        • 2.Qd1#
      • 1...Sd5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Rb3#
      • 1...dxe3
        • 2.Be1#
      • 1...Sd5
        • 2.Bc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Threat
        • R(B)
      • Vars
        • K(c);P-FLIGHT,P_SPINS(g)::R1(B)
        • S(g);::QAR2(F)
      • Refutation
        • P(d);XP(D)
    • Try
      • B(C);
      • Threat
        • R(B)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XP(D)::QAR2(F)
        • P(d);SBLOCK,XP(D)::QAR2(F)
      • Refutation
        • S(g);
  • Actual
    • Q(F);
    • Threat
      • R(B)
    • Vars
      • P(d);SBLOCK,XP(D)::QAR(F)+B(C)
      • S(g);::QAR(F)+B(C)
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