MESON Chess Problem Database

Problem Display
PID: 103612 (7Q/1R6/4R1n1/2r2Nrp/7P/1P1B1k1P/pq1B1Pp1/2n3K1 w - - 0 1)

Jimeno Serrano, Carlos

The Chess Review, 1935

7Q/1R6/4R1n1/2r2Nrp/7P/1P1B1k1P/pq1B1Pp1/2n3K1

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Sd4#
    • 1...Qd4
      • 2.Sxd4#
    • 1...Qb1
      • 2.Sd4#
    • 1...Qc2
      • 2.Sd4#
    • 1...Qxb3
      • 2.Sd4#
    • 1...Rc3
      • 2.Sd4#
    • 1...Se2+
      • 2.Bxe2#
    • 1...Sxb3
      • 2.Be2#
    • 1...Sf4
      • 2.Re3#
    • 1...Sxh4
      • 2.Sxh4#
  • Tries
    • 1.Qd4?
      • threat
        • 2.Re3#
        • 2.Qe3#
        • 2.Qe4#
      • 1...Se2+
        • 2.Bxe2#
      • 1...Qxd4
        • 2.Sxd4#
      • 1...Qxd2
        • 2.Qe4#
      • 1...Rc4
        • 2.Re3#
        • 2.Qe3#
      • 1...Rg4
        • 2.Re3#
        • 2.Qe3#
      • 1...Se5
        • 2.Qe3#
        • 2.Qe4#
        • 2.Qf4#
      • 1...Re5!
    • 1.Qxh5+?
      • 1...Rg4
        • 2.Qxg4#
      • 1...Rxh5!
  • Keys
    • 1.Rf7!
      • threat
        • 2.Sd4#
      • 1...Se2+
        • 2.Bxe2#
      • 1...Rcxf5
        • 2.Qa8#
      • 1...Rgxf5
        • 2.Qxh5#
      • 1...Qd4
        • 2.Sxd4#
      • 1...Sf4
        • 2.Re3#

This is a version of 53940

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::S(H)
    • Q(c);N_GUARD,P_PINP(C)::S(H),XQ(c)
    • Q(c);N_GUARD,XP(D)::S(H)
    • R(f);S_CUTQ(c)::S(H)
    • S(a);CHECK,N_GUARD::B(E),XS(a)
    • S(a);N_GUARD,XP(D)::B(E)
    • S(i);SBLOCK::R1(I)
    • S(i);XP(G)::S(H),XS(i)
  • Tries
    • Try
      • Q(K);
      • Threat
        • DUALS(3)
      • Vars
        • S(a);CHECK,N_GUARD::B(E),XS(a)
        • Q(c);P_PINP(C),XQ(K)::S(H),XQ(c)
        • Q(c);XB(B)::QAB1(K)
      • Refutation
        • R(f);
    • Try
      • Q(K);CHECK,XP(h)
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::QAB1(K),XR(g)
      • Refutation
        • R(g);XQ(K)
  • Actual
    • R(J);
    • Threat
      • R(J)+S(H),DCHECK
    • Vars
      • S(a);CHECK,N_GUARD::B(E),XS(a)
      • R(f);N_GUARD,P_SPINR(f),XS(H)::QAB(K)
      • R(g);N_GUARD,P_SPINR(g),XS(H)::QAB(K),XP(h)
      • Q(c);P_PINP(C)::R(J)+S(H),DCHECK,XQ(c)
      • S(i);SBLOCK::R1(I)
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