MESON Chess Problem Database

Problem Display
PID: 158434 (2R3bK/3N1P2/n1n1N2p/R1q5/2kp2Qr/b1P4p/PrpPPp2/2B2B2 w - - 0 1)

Arguelles Ferrer, Antonio Fernandez

Revista Romana de Sah, 1931

2R3bK/3N1P2/n1n1N2p/R1q5/2kp2Qr/b1P4p/PrpPPp2/2B2B2

#2

13 + 13

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qb4
      • 2.Se5#
      • 2.e3#
    • 1...Qb6
      • 2.Se5#
      • 2.e3#
    • 1...Qd6
      • 2.e3#
    • 1...Qa7
      • 2.Se5#
      • 2.e3#
    • 1...Qe7
      • 2.Se5#
      • 2.e3#
    • 1...Qf8
      • 2.Se5#
      • 2.e3#
    • 1...Qd5
      • 2.e3#
    • 1...Qe5+
      • 2.Sxe5#
    • 1...Qg5
      • 2.e3#
    • 1...Qh5
      • 2.e3#
    • 1...Sab4
      • 2.Rxc5#
    • 1...Scb4
      • 2.Sb6#
  • Tries
    • 1.Sb6+?
      • 1...Qxb6
        • 2.e3#
      • 1...Rxb6!
  • Keys
    • 1.Sxd4!
      • threat
        • 2.e4#
      • 1...Qxd4+
        • 2.Se5#
      • 1...Qe5+
        • 2.Sxe5#
      • 1...Kd5
        • 2.Qe6#
      • 1...Sxd4
        • 2.fxg8Q#
        • 2.fxg8B#
      • 1...Sab4
        • 2.Rxc5#
      • 1...Scb4
        • 2.Sb6#
      • 1...Se5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(i);P_SPINS(k)::B(B)+P(E)
    • Q(i);CHECK,N_GUARD,P_SPINS(k)::S(J),XQ(i)
    • S(j);N_GUARD,S_CUTB(d)::R1(H),XQ(i)
    • S(k);P_SPINQ(i),S_CUTR(a)::S(J)
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • Q(i);P_SPINS(k),XS(J)::B(B)+P(E)
      • Refutation
        • R(a);XS(J)
  • Actual
    • S(I);XP(g)
    • Threat
      • B(B)+P(E)
    • Vars
      • Q(i);CHECK,N_GUARD,P_SPINQ(i),P_SPINS(k),XS(I)::S(J)
      • Q(i);CHECK,N_GUARD,P_SPINS(k)::S(J),XQ(i)
      • K(f);P_SPINQ(i),S_FLIGHT::QAB1(G)
      • S(k);P_SPINQ(i),P_SPINS(k),XS(I)::PXB(m)=Q
      • S(j);N_GUARD,S_CUTB(d)::R1(H),XQ(i)
      • S(k);P_SPINQ(i),S_CUTR(a)::S(J)
      • S(k);P_SPINQ(i)::QAB(G)
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