MESON Chess Problem Database

Problem Display
PID: 41485 (5N2/B2p3r/6p1/1P1kP1R1/8/8/1n1P4/1B2KQ1b w - - 0 1)

Marin y Llovet, Valentin

Ruy Lopez, 1898

5N2/B2p3r/6p1/1P1kP1R1/8/8/1n1P4/1B2KQ1b

#2

9 + 6

3360 Simple Two-move Themes 1924
15428 Valentin Marin y Llovet - Seleccion de problemas 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rh2
      • 2.Qf7#
    • 1...Rh3
      • 2.Qf7#
    • 1...Rh4
      • 2.Qf7#
    • 1...Rh5
      • 2.Qf7#
    • 1...Rh6
      • 2.Qf7#
    • 1...Rf7
      • 2.Qxf7#
    • 1...Rh8
      • 2.Qf7#
    • 1...Sd1
      • 2.Qd3#
    • 1...Sd3+
      • 2.Qxd3#
    • 1...Sa4
      • 2.Qd3#
    • 1...Sc4
      • 2.Qd3#
    • 1...d6
      • 2.e6#
  • Tries
    • 1.Ba2+?
      • 1...Sc4
        • 2.Qd3#
        • 2.Qxc4#
      • 1...Ke4!
    • 1.Qf4?
      • threat
        • 2.Qd4#
        • 2.e6#
      • 1...Be4
        • 2.Qxe4#
      • 1...Rh4
        • 2.Qf7#
        • 2.e6#
      • 1...Rh5
        • 2.Qd4#
        • 2.Qf7#
      • 1...Rf7
        • 2.Qd4#
        • 2.Qxf7#
      • 1...Sc4
        • 2.Qd4#
      • 1...Sd3+!
  • Keys
    • 1.d3!
      • 1...Sxd3+
        • 2.Qxd3#
      • 1...Re7
        • 2.Qxh1#
      • 1...Rh2
        • 2.Qf7#
      • 1...Rh3
        • 2.Qf7#
      • 1...Rh4
        • 2.Qf7#
      • 1...Rh5
        • 2.Qf7#
      • 1...Rh6
        • 2.Qf7#
      • 1...Rf7
        • 2.Qxf7#
      • 1...Rg7
        • 2.Qxh1#
      • 1...Rh8
        • 2.Qf7#
      • 1...Bg2
        • 2.Qxg2#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Be4
        • 2.dxe4#
      • 1...Sd1
        • 2.Ba2#
      • 1...Sa4
        • 2.Ba2#
      • 1...Sc4
        • 2.dxc4#
      • 1...d6
        • 2.e6#

This is after

AFter J E Halliwell.

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD::QAB(C)
    • R(f);N_GUARD::QAB(C),XR(f)
    • S(b);N_GUARD::QAR2(C)
    • S(b);CHECK,N_GUARD::QAR2(C),XS(b)
    • P(e);SBLOCK::R(G)+P(F)
  • Tries
    • Try
      • B(A);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD::QAB1(C),XB(a)
        • S(b);::QAR1(C)
      • Refutation
        • S(b);CHECK
  • Actual
    • P(D);
    • Vars
      • S(b);CHECK,OGATE,XP(D)::QAR2(C),XS(b)
      • R(f);N_GUARD,P_PINP(F)::QAB(C),XB(a)
      • R(f);N_GUARD::QAB(C)
      • R(f);N_GUARD::QAB(C),XR(f)
      • R(f);N_GUARD::QAB(C),XB(a)
      • B(a);N_GUARD::QAB(C),XB(a)
      • B(a);OGATE::P(D),XB(a)
      • S(b);N_GUARD::B(A)
      • S(b);OGATE::P(D),XS(b)
      • P(e);SBLOCK::R(G)+P(F)
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