MESON Chess Problem Database

Problem Display
PID: 194900 (8/3Q2Bn/4Pb2/1p1q4/3k2KR/2NNp1Pp/b4P2/1BR3n1 w - - 0 1)

Guarini, Carlo

4th Prize, L'Italia Scacchistica, 1918

8/3Q2Bn/4Pb2/1p1q4/3k2KR/2NNp1Pp/b4P2/1BR3n1

#2

11 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qxd5#
    • 1...Qd6
      • 2.Kf5#
      • 2.Kh5#
    • 1...Qxd7
      • 2.Kf5#
      • 2.Kh5#
    • 1...Bxb1
      • 2.Qxd5#
    • 1...Be5
      • 2.Kf5#
      • 2.Kh5#
  • Tries
    • 1.Bxf6+?
      • 1...Kc4
        • 2.Qxd5#
      • 1...Sxf6+!
    • 1.Qa7+?
      • 1...Qc5
        • 2.Qxc5#
      • 1...Kc4!
    • 1.fxe3+?
      • 1...Kc4
        • 2.Qxd5#
      • 1...Kxe3!
  • Keys
    • 1.Kf4!
      • threat
        • 2.Sxb5#
      • 1...Qd6+
        • 2.Kf5#
      • 1...Be5+
        • 2.Kf5#
      • 1...Se2+
        • 2.Sxe2#
      • 1...Kc4
        • 2.Qxd5#
      • 1...Qxd7
        • 2.Kf5#
      • 1...Bxb1
        • 2.Qxd5#
      • 1...Bc4
        • 2.fxe3#
      • 1...b4
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINB(h),N_SPINQ(g),P-FLIGHT::QAB1(J),XQ(g)
    • B(b);N_GUARD,XB(A)::QAR1(J),XQ(g)
  • Tries
    • Try
      • B(K);CHECK,XB(h)
      • Vars
        • K(e);N_SPINQ(g),P-FLIGHT::QAB1(J),XQ(g)
      • Refutation
        • S(i);CHECK,XB(K)
    • Try
      • Q(J);CHECK,N_PINQ(g)
      • Vars
        • Q(g);N_GUARD,P_SPINQ(g)::QAB1(J),XQ(g)
      • Refutation
        • K(e);N_SPINB(h),P-FLIGHT
    • Try
      • P(C);CHECK,XP(c)
      • Vars
        • K(e);N_SPINB(h),N_SPINQ(g),P-FLIGHT::QAB1(J),XQ(g)
      • Refutation
        • K(e);N_SPINB(h),N_SPINQ(g),S_FLIGHT,XP(C)
  • Actual
    • K(G);P-FLIGHT
    • Threat
      • S(D),XP(f)
    • Vars
      • Q(g);CHECK::R(H)+K(G)
      • B(h);CHECK::R(H)+K(G)
      • S(a);CHECK,N_GUARD::S(D),XS(a)
      • K(e);N_SPINB(h),N_SPINQ(g),P-FLIGHT::QAB1(J),XQ(g)
      • Q(g);N_SPINQ(g),XQ(J)::R(H)+K(G)
      • B(b);N_GUARD,XB(A)::QAR1(J),XQ(g)
      • B(b);SBLOCK::P(C),XP(c)
      • P(f);::S(D)
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Developed and maintained by Brian Stephenson.
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