MESON Chess Problem Database

Problem Display
PID: 206377 (8/6p1/6B1/3Q1rpK/p5P1/B1p5/P3PN2/rk6 w - - 0 1)

Cristoforatos, Gherasim

Revista de Sah, 1925

8/6p1/6B1/3Q1rpK/p5P1/B1p5/P3PN2/rk6

#2

8 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc2
      • 2.Bxf5#
      • 2.Qd3#
    • 1...Rxa2
      • 2.Qd1#
  • Tries
    • 1.Sd1?
      • 1...Kc2
        • 2.Bxf5#
        • 2.Qd3#
      • 1...c2
        • 2.Sc3#
      • 1...Rxa2!
    • 1.Sh1?
      • 1...Kc2
        • 2.Bxf5#
        • 2.Qd3#
      • 1...Rxa2
        • 2.Qd1#
      • 1...c2!
    • 1.Sh3?
      • 1...Kc2
        • 2.Bxf5#
        • 2.Qd3#
      • 1...Rxa2
        • 2.Qd1#
      • 1...c2!
    • 1.Qd4?
      • 1...Kc2
        • 2.Bxf5#
        • 2.Qd3#
      • 1...Rxa2
        • 2.Qd1#
      • 1...c2
        • 2.Qb2#
      • 1...Kxa2!
    • 1.Qb5+?
      • 1...Kc2
        • 2.Qd3#
      • 1...Kxa2!
    • 1.Qxf5+?
      • 1...c2
        • 2.Qxc2#
      • 1...Kxa2!
    • 1.e3?
      • 1...Kc2
        • 2.Bxf5#
        • 2.Qd3#
      • 1...Rxa2
        • 2.Qd1#
      • 1...c2!
  • Keys
    • 1.Se4!
      • 1...Kc2
        • 2.Qd3#
      • 1...Rxa2
        • 2.Qd1#
      • 1...Rxd5
        • 2.Sxc3#
      • 1...c2
        • 2.Sd2#
        • 2.Sc3#
      • 1...Rf1
        • 2.Sd2#
        • 2.Sxc3#
      • 1...Rf2
        • 2.Sd2#
        • 2.Sxc3#
      • 1...Rf3
        • 2.Sd2#
        • 2.Sxc3#
      • 1...Rf4
        • 2.Sd2#
        • 2.Sxc3#
      • 1...Re5
        • 2.Sd2#
        • 2.Sxc3#
      • 1...Rf6
        • 2.Sd2#
        • 2.Sxc3#
      • 1...Rf7
        • 2.Sd2#
        • 2.Sxc3#
      • 1...Rf8
        • 2.Sd2#
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK,XP(A)::QAR2(F)
  • Tries
    • Try
      • S(C);
      • Vars
        • P(c);N_SPINR(e),SBLOCK::S(C)
      • Refutation
        • R(a);XP(A)
    • Try
      • S(C);
      • Vars
        • R(a);SBLOCK,XP(A)::QAR2(F)
      • Refutation
        • P(c);N_SPINR(e)
    • Try
      • S(C);
      • Vars
        • R(a);SBLOCK,XP(A)::QAR2(F)
      • Refutation
        • P(c);N_SPINR(e)
    • Try
      • Q(F);
      • Vars
        • R(a);SBLOCK,XP(A)::QAR2(F)
        • P(c);N_SPINR(e),OGATE::QAR1(F)
      • Refutation
        • K(b);N_SPINR(e),S_FLIGHT,XP(A)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(F)
      • Refutation
        • K(b);N_SPINR(e),S_FLIGHT,XP(A)
    • Try
      • Q(F);CHECK,XR(e)
      • Vars
        • P(c);P_SPINP(c)::QAB1(F),XP(c)
      • Refutation
        • K(b);S_FLIGHT,XP(A)
    • Try
      • P(B);
      • Vars
        • R(a);SBLOCK,XP(A)::QAR2(F)
      • Refutation
        • P(c);N_SPINR(e)
  • Actual
    • S(C);N_PINR(e)
    • Vars
      • K(b);S_FLIGHT::QAB1(F)
      • R(a);SBLOCK,XP(A)::QAR2(F)
      • R(e);XQ(F)::B(H)+S(C),DCHECK,XP(c)
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