MESON Chess Problem Database

Problem Display
PID: 225358 (2R4Q/8/1pn2N2/1p6/1B1k2N1/P1nrp3/P3B3/K1R5 w - - 0 1)

Haring, Jacobus

5th HM., Praca, 1959

2R4Q/8/1pn2N2/1p6/1B1k2N1/P1nrp3/P3B3/K1R5

#2

10 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rd8+?
      • 1...Kc4
        • 2.Sxe3#
        • 2.Bxd3#
        • 2.Rxc3#
        • 2.Qg8#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Sxd8!
    • 1.Qd8+?
      • 1...Kc4
        • 2.Sxe3#
        • 2.Se5#
        • 2.Bxd3#
        • 2.Rxc3#
        • 2.Rxc6#
        • 2.Qxd3#
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sxd8!
    • 1.Qe8?
      • 1...Kc4
        • 2.Qe4#
      • 1...Sxa2
        • 2.Qd7#
        • 2.Qe4#
      • 1...Sxe2
        • 2.Qd7#
        • 2.Qe4#
      • 1...Sxb4
        • 2.Qe5#
      • 1...Rd1
        • 2.Qxe3#
      • 1...Rd2
        • 2.Qxe3#
      • 1...Sb1
        • 2.Qd7#
        • 2.Qe4#
      • 1...Sd1
        • 2.Qd7#
        • 2.Qe4#
      • 1...Sa4
        • 2.Qd7#
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sd5
        • 2.Qe4#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sa7
        • 2.Qe5#
      • 1...Sb8
        • 2.Qe5#
      • 1...Sd8
        • 2.Qe5#
      • 1...Se7!
  • Keys
    • 1.Qh5!
      • 1...Kc4
        • 2.Qd5#
      • 1...Sxa2
        • 2.Qd5#
      • 1...Sxe2
        • 2.Qd5#
      • 1...Sxb4
        • 2.Qe5#
      • 1...Rd1
        • 2.Bxc3#
      • 1...Rd2
        • 2.Bxc3#
      • 1...Sb1
        • 2.Qd5#
      • 1...Sd1
        • 2.Qd5#
      • 1...Sa4
        • 2.Qd5#
      • 1...Se4
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sa7
        • 2.Qe5#
      • 1...Se7
        • 2.Qe5#
      • 1...Sb8
        • 2.Qe5#
      • 1...Sd8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 17
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(I);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::R1(I),XS(a)
      • Refutation
        • S(g);XR(I)
    • Try
      • Q(J);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(J),XS(a)
      • Refutation
        • S(g);XQ(J)
    • Try
      • Q(J);
      • Vars
        • K(d);P-FLIGHT,P_SPINR(b),P_SPINS(a)::QAR2(J)
        • S(g);N_GUARD,XB(F)::QAB1(J)
        • R(b);N_GUARD,P_PINR(B)::QAB1(J),XP(c)
        • R(b);N_GUARD::QAB1(J),XP(c)
        • S(a);N_GUARD::QAR1(J),XS(a)
        • S(a);N_GUARD::QAR1(J)
        • S(g);N_GUARD::QAB1(J)
        • S(g);N_GUARD::QAB1(J),XS(g)
      • Refutation
        • S(g);
  • Actual
    • Q(J);
    • Vars
      • K(d);P-FLIGHT,P_SPINR(b),P_SPINS(a)::QAB1(J)
      • S(a);N_GUARD,XP(C)::QAR1(J)
      • S(a);N_GUARD,XB(D)::QAR1(J)
      • S(g);N_GUARD,XB(F)::QAB1(J)
      • R(b);N_GUARD,P_PINR(B)::B(F),XS(a)
      • R(b);N_GUARD::B(F),XS(a)
      • S(a);N_GUARD::QAR1(J)
      • S(a);N_GUARD::QAR1(J),XS(a)
      • S(g);N_GUARD::QAB1(J)
      • S(g);N_GUARD::QAB1(J),XS(g)
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