MESON Chess Problem Database

Problem Display
PID: 101511 (7Q/6r1/KPPrP3/7n/RNnk4/1BpNR3/2p5/5bB1 w - - 0 1)

Guidelli, Giorgio

Good Companions (July), 1917

7Q/6r1/KPPrP3/7n/RNnk4/1BpNR3/2p5/5bB1

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sxc2#
    • 1...Sb2
      • 2.Sxc2#
      • 2.Re1#
      • 2.Re2#
    • 1...Sd2
      • 2.Sxc2#
      • 2.Re1#
      • 2.Re2#
    • 1...Sa3
      • 2.Sxc2#
      • 2.Re1#
      • 2.Re2#
    • 1...Sa5
      • 2.Sxc2#
      • 2.Re1#
      • 2.Re2#
    • 1...Se5
      • 2.Sxc2#
    • 1...Sxb6
      • 2.Sxc2#
      • 2.Re1#
      • 2.Re2#
  • Tries
    • 1.Re5+?
      • 1...Se3
        • 2.Bxe3#
      • 1...Rxg1!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Re4#
      • 1...Sb2+
        • 2.Re2#
      • 1...Sd2+
        • 2.Re2#
      • 1...Sa3+
        • 2.Re2#
      • 1...Sxe3+
        • 2.Sbd3#
      • 1...Sa5+
        • 2.Re2#
      • 1...Se5+
        • 2.Rd3#
      • 1...Sxb6+
        • 2.Re2#
      • 1...Kxc5
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • R(g);SBLOCK::S(F),XP(b)
    • S(d);N_SPINR(h),P_PINS(C)::R(E)+S(F),DCHECK,XP(b)
  • Tries
    • Try
      • R(D);CHECK,N_PINR(h)
      • Vars
        • S(d);N_GUARD,P_PINS(C),P_SPINS(d)::B(A),XS(d)
      • Refutation
        • R(h);XB(A)
  • Actual
    • S(C);
    • Threat
      • B(A)+R(D),DCHECK
    • Vars
      • S(d);CHECK,N_GUARD::B(A)+R(D)
      • S(d);CHECK,P_SPINS(d),XR(D)::R(E)+S(F)
      • S(d);CHECK,N_SPINR(h),SBLOCK::B(A)+R(D),DCHECK
      • S(d);CHECK,N_GUARD,XP(H)::B(A)+R(D)
      • K(e);N_SPINR(h),S_FLIGHT,XS(C)::B(A)+R(D),DCHECK
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