MESON Chess Problem Database

Problem Display
PID: 108532 (8/2N4B/2nn2r1/1b3p1Q/1Rprk1P1/R3N3/3PP1KB/8 w - - 0 1)

Kapros, Jorge Marcelo

Siete Dias, 1978

8/2N4B/2nn2r1/1b3p1Q/1Rprk1P1/R3N3/3PP1KB/8

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg4+
      • 2.Qxg4#
    • 1...Sb7
      • 2.Qxf5#
    • 1...Sf7
      • 2.Qxf5#
    • 1...Sc8
      • 2.Qxf5#
    • 1...Se8
      • 2.Qxf5#
    • 1...fxg4
      • 2.Qxg4#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.Re3#
      • 1...Rxg4+
        • 2.Qxg4#
      • 1...Rxd2
        • 2.Sxd2#
        • 2.Sxd6#
      • 1...Sxc4
        • 2.Qxf5#
      • 1...Rd3
        • 2.Sxd6#
      • 1...Rd5
        • 2.Sxd6#
      • 1...f4
        • 2.Sxd6#
      • 1...Rxc4!
    • 1.Qg5?
      • threat
        • 2.Qf4#
      • 1...f4
        • 2.Qxf4#
      • 1...Rxg5!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Re3#
      • 1...Rxg4+
        • 2.Qxg4#
      • 1...Sxf5
        • 2.Qxf5#
      • 1...Rd3
        • 2.exd3#
      • 1...c3
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(h);CHECK,OGATE,P_SPINP(e),XP(H)::QAR2(I),XR(h)
    • S(g);N_GUARD::QAB1(I),XP(e)
    • P(e);OGATE,P_SPINR(h),XP(H)::QAR2(I),XP(e)
  • Tries
    • Try
      • S(F);XP(a)
      • Threat
        • R1(E)
      • Vars
        • R(h);CHECK,OGATE,P_SPINP(e),XP(H)::QAR2(I),XR(h)
        • S(g);N_GUARD,XS(F)::QAB1(I),XP(e)
        • R(b);::R(G)+S(F),DCHECK,XS(g)
        • P(e);P_SPINR(h)::S(F),XS(g)
      • Refutation
        • R(b);P_SPINR(b),XS(F)
    • Try
      • Q(I);N_SPINP(H)
      • Threat
        • QAR1(I)
      • Vars
        • P(e);P_SPINR(h)::QAR1(I),XP(e)
      • Refutation
        • R(h);P_PINP(H),P_SPINP(e),XQ(I)
  • Actual
    • S(F);XP(e)
    • Threat
      • R1(E)
    • Vars
      • R(h);CHECK,OGATE,XP(H)::QAR2(I),XR(h)
      • S(g);OGATE,XS(F)::QAB1(I),XS(g)
      • R(b);OGATE,P_SPINP(a)::P(B),XR(b)
      • P(a);P_SPINR(b)::S(F),XS(g)
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