MESON Chess Problem Database

Problem Display
PID: 202851 (8/8/8/7Q/5P1B/3R1RnN/1KBNP1pp/4knrb w - - 0 1)

Fasano, Alessandro

Sinfonie Scacchistiche, 2017

8/8/8/7Q/5P1B/3R1RnN/1KBNP1pp/4knrb

#2

10 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe2
      • 2.Rfe3#
  • Tries
    • 1.Bxg3+?
      • 1...Kxe2
        • 2.Rxf1#
        • 2.Rfe3#
      • 1...Sxg3!
    • 1.Rde3?
      • 1...Kxd2
        • 2.Qa5#
      • 1...Sxd2
        • 2.Bxg3#
      • 1...Sxe3!
    • 1.Rfe3?
      • threat
        • 2.Sf3#
      • 1...Sxe3
        • 2.Bxg3#
      • 1...Sxd2!
    • 1.Rxg3?
      • 1...Sxg3
        • 2.Bxg3#
      • 1...Se3
        • 2.Rxg2#
        • 2.Rgxe3#
        • 2.Rg5#
        • 2.Rg6#
        • 2.Rg7#
        • 2.Rg8#
      • 1...Sxd2!
    • 1.Qe8?
      • 1...Sxd2
        • 2.Bxg3#
      • 1...Se3!
    • 1.Qc5?
      • threat
        • 2.Qf2#
      • 1...Kxe2
        • 2.Qf2#
      • 1...Se3!
    • 1.Qe5?
      • 1...Sxd2
        • 2.Bxg3#
      • 1...Se3!
  • Keys
    • 1.e4!
      • 1...Ke2
        • 2.Rfe3#
      • 1...Sxd2
        • 2.Rde3#
      • 1...Se3
        • 2.Rfxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINS(g),OGATEB,P-FLIGHT,XP(D)::QAB(J)+R(F),DCHECK
  • Tries
    • Try
      • B(I);CHECK,XS(g)
      • Refutation
        • S(b);XB(I)
    • Try
      • R(E);
      • Vars
        • K(a);N_SPINS(g),OGATEB,S_FLIGHT,XS(C)::QAB(J)
        • S(b);N_GUARD,SBLOCK,XS(C)::B(I),XS(g)
      • Refutation
        • S(b);XR(E)
    • Try
      • R(F);
      • Threat
        • S(C)
      • Vars
        • S(b);N_GUARD,XR(F)::B(I),XS(g)
      • Refutation
        • S(b);XS(C)
    • Try
      • R(F);XS(g)
      • Vars
        • S(b);OGATE,P_SPINS(b),XR(F)::B(I),XS(b)
      • Refutation
        • S(b);XS(C)
    • Try
      • Q(J);
      • Vars
        • S(b);N_GUARD,XS(C)::B(I),XS(g)
      • Refutation
        • S(b);
    • Try
      • Q(J);
      • Threat
        • QAB1(J)
      • Vars
        • K(a);N_SPINS(g),P-FLIGHT,XP(D)::QAR1(J)
      • Refutation
        • S(b);
    • Try
      • Q(J);
      • Vars
        • S(b);N_GUARD,XS(C)::B(I),XS(g)
      • Refutation
        • S(b);
  • Actual
    • P(D);
    • Vars
      • K(a);N_SPINS(g),P-FLIGHT::QAB(J)+R(F),DCHECK
      • S(b);N_GUARD,SBLOCK,XS(C)::R(E)
      • S(b);N_GUARD::R(F),XS(b)
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