MESON Chess Problem Database

Problem Display
PID: 86594 (8/QP6/B7/B4pp1/1R3pP1/5p2/R1pP1N1P/r3k2K w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Intelectualie Egri, 1993

8/QP6/B7/B4pp1/1R3pP1/5p2/R1pP1N1P/r3k2K

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd2+
      • 2.Rb1#
    • 1...fxg4
      • 2.Re4#
  • Tries
    • 1.Rxf4?
      • threat
        • 2.Qe3#
      • 1...c1S
        • 2.d4#
      • 1...gxf4!
    • 1.Rb5?
      • threat
        • 2.Re5#
      • 1...Ke2+
        • 2.Rb1#
      • 1...Kf1
        • 2.Rb1#
        • 2.Re5#
      • 1...c1S!
    • 1.gxf5?
      • threat
        • 2.Re4#
      • 1...Kxd2+
        • 2.Rb1#
      • 1...c1S!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Re6#
      • 1...Kxf2+
        • 2.Rb1#
      • 1...c1S
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(b);CHECK,P_SPINP(c),S_FLIGHT,XP(C)::B(H)+R(F)
    • P(f);N_GUARD,XP(G)::R(F)
  • Tries
    • Try
      • R(F);XP(e)
      • Threat
        • QAR2(J)
      • Vars
        • P(c);::B(H)+P(C)
      • Refutation
        • P(g);XR(F)
    • Try
      • R(F);
      • Threat
        • R(F)
      • Vars
        • K(b);CHECK,P-FLIGHT::B(I)+R(F)
      • Refutation
        • P(c);
    • Try
      • P(G);XP(f)
      • Threat
        • R(F)
      • Vars
        • K(b);CHECK,P_SPINP(c),S_FLIGHT,XP(C)::B(H)+R(F)
      • Refutation
        • P(c);
  • Actual
    • R(F);
    • Threat
      • R(F)
    • Vars
      • K(b);CHECK,S_FLIGHT,XS(D)::QAB(J)+R(F)
      • P(c);::B(H)+P(C)
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