MESON Chess Problem Database

Problem Display
PID: 243700 (2R3B1/1p1r2n1/2n1r3/1b6/1PkNQp2/p1P5/P2K1N1b/8 w - - 0 1)

Battaglia, Emilio

L'Italia Scacchistica, 1940

2R3B1/1p1r2n1/2n1r3/1b6/1PkNQp2/p1P5/P2K1N1b/8

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4+
      • 2.Qxd4#
    • 1...Rd5
      • 2.Qd3#
    • 1...Rc7
      • 2.Sxc6#
    • 1...Re7
      • 2.Sc2#
      • 2.Se2#
      • 2.Sb3#
      • 2.Sf3#
      • 2.Sf5#
      • 2.Sxc6#
      • 2.Sxe6#
    • 1...Rf7
      • 2.Sxe6#
  • Tries
    • 1.Bxe6+?
      • 1...Rd5
        • 2.Bxd5#
        • 2.Qd3#
        • 2.Qxd5#
        • 2.Qe2#
      • 1...Sxe6!
    • 1.Qe5?
      • threat
        • 2.Qxb5#
        • 2.Qc5#
      • 1...Rxd4+
        • 2.Qxd4#
      • 1...Ba4
        • 2.Qc5#
      • 1...Ba6
        • 2.Qc5#
      • 1...b6
        • 2.Qxb5#
      • 1...Rd5!
    • 1.Qxe6+?
      • 1...Rd5
        • 2.Qxd5#
        • 2.Qe2#
      • 1...Sxe6!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Se5#
      • 1...Rxd4+
        • 2.Qxd4#
      • 1...Rd5
        • 2.Qd3#
      • 1...Rc7
        • 2.Sxc6#
      • 1...Rf7
        • 2.Sxe6#
      • 1...f3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(i);CHECK,N_SPINR(g),OGATE,P_SPINR(i),XS(F)::QAR1(G),XR(i)
    • R(i);N_SPINR(g),SBLOCK::QAB1(G)
    • R(i);N_PINS(F),N_SPINS(f)::QAR(G)+S(F),XS(f)
    • R(i);N_PINS(F),N_SPINR(g)::QAR(G)+S(F),XR(g)
  • Tries
    • Try
      • B(I);CHECK,XR(g)
      • Refutation
        • S(j);XB(I)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);CHECK,OGATE,XS(F)::QAR1(G),XR(i)
        • B(e);::QAR1(G)
        • P(h);::QAB1(G),XB(e)
      • Refutation
        • R(i);N_SPINR(g)
    • Try
      • Q(G);CHECK,XR(g)
      • Refutation
        • S(j);XQ(G)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • R(i);CHECK,N_SPINR(g),OGATE,P_SPINR(i),XS(F)::QAR1(G),XR(i)
      • R(i);N_SPINR(g),SBLOCK::QAB1(G)
      • R(i);N_PINS(F),N_SPINS(f)::QAR(G)+S(F),XS(f)
      • R(i);N_PINS(F),N_SPINR(g)::QAR(G)+S(F),XR(g)
      • P(d);N_GUARD::S(C)
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